Let’s understand the meaning of the given words:

Benign: not dangerous to health; not recurrent or progressive

Harsh: Of textures that are rough to the touch or substances consisting of relatively large particles

Favourable: Encouraging, approving or pleasing

Malignant: dangerous to health; characterized by progressive and uncontrolled growth

Severe: Intensely or extremely bad or unpleasant in degree or quality

Hence, option B is the correct answer.

Foundation : the idea, fact etc. on which something is based

E.g. Humility is the foundation of all virtue

Base : an idea or fact on which something is based

E.g. She used her love experience as the base for her novel.

Top : the highest part or point of something

Building : a structure such as room , house etc.

Structure : the arrangement or organization of parts in a system

Hence option B is the correct answer.

Just : right , reasonable

E.g. She fought for a just cause

Fair : appropriate and acceptable in a particular situation

E.g. That’s a fair price for that house

Partial : not complete

Favouring : to support somebody/something

Courtly : very polite

Hence option B is the correct answer.

Imitation : copy

e.g. This is a real pearl ,not an imitation

Fake : not real

e.g. The antique is a fake

Real : true, actual

Genuine : actual, not imagined

Original : first, earliest

Hence option A is the correct answer.

Fiction : imagination

E.g. The book is work of fiction

Fantasy : dreams and imagination

E.g. His favourite fantasy is to own a big house

Fact : reality

Truth : reality

Literature: a work of art(writing)

Hence option D is the correct answer.

Warm: having a moderate degree of heat

e.g. It’s necessary to keep yourself warm in winter.

Cool : not warm , moderately cold

e.g. The plant grows best in cool climates

Spongy : soft and compressible

Springy : having an elastic quality

Hot : having a high temperature

Hence option D is the correct answer.

Feeble : with no energy or power

E.g. He made a feeble attempt to explain his behavior.

Strong : powerful

E.g. He has a strong point of view

Weak : without energy or power

Foible : a minor weakness or fault in someone’s character.

Fault : weakness

Hence option D is the correct answer.

The meanings of the words are:

Ominous: giving the worrying impression that something bad is going to happen; threateningly inauspicious.

Auspicious: conducive to success; favourable.

Dismal: causing a mood of gloom or depression.

Dark: with little or no light.

Gloomy: dark or poorly lit, especially so as to appear depressing or frightening.

Hence, option A is the correct answer.

The meanings of the words are:

Ruthless: having or showing no pity or compassion for others.

Savage: (of an animal or force of nature) fierce, violent, and uncontrolled.

Mean: intend to convey or refer to (a particular thing); signify.

Inhuman: lacking human qualities of compassion and mercy; cruel and barbaric.

Compassionate: feeling or showing sympathy and concern for others.

Hence, option D is the correct answer.

The meanings of the words are:

Genuine: truly what something is said to be; authentic.

Authentic: of undisputed origin and not a copy; genuine.

Honest: free of deceit; truthful and sincere.

Pure: not mixed or adulterated with any other substance or material.

Dubious: hesitating or doubting.

Hence, option D is the correct answer.