Choose the sentence that uses pronouns correctly.

Who would you choose as your mentor?---my answer
Do you remember whom signed his name very large on the Declaration of Independence?
Whom made this wonderful dinner?
Have you met the people who are visiting next door?

The sentence that uses pronouns correctly is: "Who would you choose as your mentor?"

To determine if a pronoun is being used correctly, you need to consider its function in the sentence. In this case, "who" is being used as the subject of the sentence, asking about the person that you would choose as a mentor.

In contrast, the other three sentences use "whom" incorrectly. "Whom" is used as the object of a verb or preposition, while "who" is used as the subject.

In the second sentence, the correct pronoun to use is "who": "Do you remember who signed his name very large on the Declaration of Independence?" Here, "who" is the subject of the verb "signed".

In the third sentence, the correct pronoun to use is "who": "Who made this wonderful dinner?" Here, "who" is the subject of the verb "made".

In the fourth sentence, the correct pronoun to use is "who": "Have you met the people who are visiting next door?" Here, "who" is the subject of the verb "are visiting".

is it # 3

I disagree.

who = subject form
whom = object form

Please re-think.

No. You're just guessing.

In 1, "Who" should be "Whom" because it's the direct object of the verb "would choose" -- you would choose whom...

In 3, "Whom" should be "Who" because it's the subject of the sentence (main verb is "made").

No more guessing. Think.