Which word is a derivative of the word serve?

a. conserve
b. nervous
c. version
d. serrated

A. conserve

The word "conserve" derives from the word "serve." It means to make sure that something is preserved. It also refers to the desire to save something, and not waste it. Conserve is the origin of the word conservatism, which refers to an opposition to radical change, intended to protect social institutions.

adverb is the answer i believe.

1# the answer is c

2#the answer is a