You center a lens to get better resolution and to open up the whole image
C.) she may be infertile but she could use help to impregnate her.
A. Ethics
I'm 95% positive on this one, I hope I helped!
I believe your answer is d. Derek is hungry or needs to have his diaper changed.
Option c could be correct but option d seems more likely
I hope this is the answer you're looking for and good luck.