On the street unless he can catch the person’s eye with a wave it is better _______ get someone’s attention.

On the street, unless he can catch the person’s eye with a wave, it is better _______ get someone’s attention.

A. to not try to

B. try not to

C. not to try to

D. not trying

请帮忙给出正确答案和分析，谢谢！