Describe how circumstances would affect a person’s identity development (crisis, commitment, diffusion, foreclosure, moratorium, achievement). i don't really understand what is it asking i know the first part but i am having trouble with what it means in the parentheses.

The parenthesis are just giving you examples about developments in a persons life. Like a big crisis could mean that the person would get very depressed.

for me i cant do homework without music, so, i guess i would say faster with it, than without it. for me at least.

you can't answer this. more information is needed.