Which word in this sentence is a personal pronoun in the objective case?

We know two tour guides, and they gave us a tour themselves.
A. We
B. They
C. Us
D. Themselves
Is the answer C?
Thank you

Yes, you're right.

Yes, the correct answer is C. "Us" is a personal pronoun in the objective case in the given sentence. To identify the personal pronoun in the objective case, you need to locate a pronoun that is used as an object in the sentence, typically after a verb or preposition.

In the given sentence, "us" follows the verb "gave," indicating that it is being used as the object of the verb. Hence, "us" is the personal pronoun in the objective case.