In which sentence below is the word boy used as an interjection?

Question

a) That boy worked on the project for more than an hour!
b) There was not one single boy at the party!
c) "Boy, you'd better listen!" Al's mother snapped!
d) "Boy, is it hot in this room!" Jake complained.

Answer 1

c) "Boy, you'd better listen!" Al's mother snapped!