By murdering that woman, he has committed a hideous crime.

Answer: Option C

Hideous : extremely ugly.
Normal : conforming to a standard; usual, typical, or expected.
Generous : showing a readiness to give more of something, especially money, than is strictly necessary or expected.
Handsome : (of a man) good-looking.
Fair : treating people equally without favouritism or discrimination.

Antonym of Hideous is Handsome