I pick A) to go. It look like an infinitive
So you're looking for 2 synonyms. B is the best answer, avert and prevent are synonyms of each other. The other choices are antonyms, or they're at least not synonyms.
The answer is C. Appearing to be calm and relaxed
D. It will highlight the historical significance of bicycles for women.
Choices, please. I could help you.