When someone needs help, I try to lend a hand.

A. Alliteration
B. Antithesis
C. Idiom
D. Imagery

C?

yes

thank you so much :D

Actually, the correct answer is A. Alliteration.

Alliteration is a literary device where the same consonant sound is repeated at the beginning of multiple words in a phrase or sentence. In this example, the words "help" and "hand" both start with the "h" sound, creating alliteration.