Very unsure about this one:

Which sentences does not have any errors in agreement between pronouns and thie antecedents?
a)Each character on the pilgrimage to Canterbury had their own story to tell.
b)Because each character was on the pilgrimage, they had to tell a story.
c)While riding to Canterbury, each character had to share a story they liked.
d)While riding to Canterbury, each character had to share his or her own story.

d??

Right -- it's d! Congrats!!

Yes, exactly!

a) each -their
b)each -they
c)each they

d each - his or her

each is singular so the pronoun also has to be singular.

Yes, you are correct! Sentence d) does not have any errors in agreement between pronouns and their antecedents. The pronoun "each character" is singular and the pronoun "his or her" accurately matches this singular antecedent. So, sentence d) is the correct choice. Here's the explanation for the other options:

a) Each character on the pilgrimage to Canterbury had their own story to tell. ⇒ Error: The pronoun "their" does not agree in number with the singular antecedent "each character." To make it grammatically correct, you could replace "their" with "his or her," making it "Each character on the pilgrimage to Canterbury had his or her own story to tell."

b) Because each character was on the pilgrimage, they had to tell a story. ⇒ Error: The pronoun "they" does not have a clear antecedent. It is ambiguous which noun "they" refers to. To clarify, you could specify the antecedent: "Because each character was on the pilgrimage, each character had to tell a story."

c) While riding to Canterbury, each character had to share a story they liked. ⇒ Error: Similar to option a), the pronoun "they" does not agree in number with the singular antecedent "each character." To make it grammatically correct, you could replace "they" with "he or she," making it "While riding to Canterbury, each character had to share a story he or she liked."

Therefore, option d) is the correct choice because it accurately maintains agreement between the singular antecedent and the pronoun used.