This word means the same as the given italicized word. Hence option C is correct.
Option A: 'Accurate' means 'correct in all details, exact'.
Option B: 'Good' means 'that which is morally right'.
Option D: 'Fake' means 'not genuine, imitation or counterfeit'.
These words do not mean the same as the given word 'genuine'.
So, options A, B and D are wrong.