Correct Answer: (C)
A. There is an error in this sentence as written. The word
we refers to the parents who took their children to vaudeville shows. Since
parents is in the third person and
we is in the first person, the sentence needs a different pronoun. Eliminate.
B. The pronoun refers to the word
parents. Since this noun is plural, it cannot be referred to with the singular
he or
she. Eliminate.
C. The error in the sentence is a shift in person. The word
parents is a plural third-person noun.
We is a plural first-person pronoun. The correct pronoun must also be in the third person plural:
they is what the sentence needs.
D. The pronoun refers to the word
parents. Since this noun is plural, it cannot be referred to with the singular
one.