Answer: C
Explanation: He squealed in excitement
WHOMEVER the seniors elect will as the president of the class.
WHOEVER the seniors elect will serve as the president of the class.
The answer is whomever, it just sounds better and more proper than whoever. Hope this helps!
Shrew usually means an angered or a bad-tempered person.
Thank you for that beautiful speech. Hope you have a great Thanksgiving! <3