Question

Which of the following sentences uses who or whom correctly

A: She is the person whom he had found sleeping in the library

B: the musical group whom won thee top prize are from my hometown

C: the author is the one who i saw at the bookstore today

D: against who did you think you would compete in the contest?

Answer 1

A is correct
B. Who
C whom
D is correct

Answer 2

she is the one whom i saw sleeping in the library a