I'll mark you

which of the following is not a word part?

a: suffix
b: prefix
c: subject
d: root

where do prefixes occur in a word?

a: at the beginning of a word
b: at the end of a word
c: in the middle of a word
d: after a word

if commit means “to send together,” what does committing mean in the following sentence?

when you buy a puppy, you are committing to taking care of it.

a: holding
b: driving
c: joining
d: placing