Losing weight, When?

Hi Everyone, I need a feedback from you guys but I am going to have to use seperate from men and women. You will see below:

A. For Women:
If you could lose weight in only one bodypart of your body, what part would you choose? When would you want to lose it?

B. For Men:
If you were trying to gain muscles mass only bodypart of your body, what part would you choose? When would you want to get big enough to show off? Or if you were to lose weight in only bodypart of your body, which part would you choose? When would you want to lose it?

Thanks! You are the best!
Be sure type A or B- so that I will know.