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Solutions
After labelling the given figure;

The number of triangles formed are; ALF, FLH, HLC, CAL, ALE, ELF, CLG, HGL, ACH, AFH, ACF, FHC, FPB, BPD, DPH, HPF, FDB, FHD, FBH, BHD, FCD, AHB, GOH, HOI, IOJ, JOG, GIH, GIJ, GJH, HJI.
Thus there are in total 30 triangles.
Hence, option A is the correct answer.