Identifying antecedents

11a. The antecedent in the following sentence is Doctors: Doctors should schedule more time for patients so they do not spend so much time in the waiting room.
11b. The antecedent in the following sentence is patients: Doctors should schedule more time for patients so they do not spend so much time in the waiting room.
My answer is (B), Am I right? Thanks

B is correct, yes!

Thank you

Yes, you are correct. In sentence 11b, the antecedent is "patients." The antecedent is the noun that a pronoun refers to. In this case, the pronoun "they" refers back to "patients." The sentence means that doctors should schedule more time for patients to prevent them from spending too much time in the waiting room. Well done!