Answer:
B. They say that doing homework leads to his success in school.
Step-by-step explanation:
Looking at the answers, C and D already make sense, so they're not the answers. The answer A does not have an unclear antecedent because "my mom and me" would not be written as "my mom and I". B is the only answer left. If you look at the sentence, it begins with "they", and it ends up saying "his success in school". This sentence includes a confusing antecedent because the sentence does not define the person who it is describing.
Sorry if this explanation was confusing. I hope this helps! Have a great day!! C:
