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.

Answer 1

Is this a true or false question?

In that sentence, it is unclear whether "they" refers to doctors or patients.

Common sense would imply that it refers to patients, since doctors do not spend time in the waiting room.

There is also a problem with the logic of the statement.

If they scheduled and spent more with with patients, they will not be able to serve as many patients. This might help decrease waiting room time. But it might not. It all depends upon how well they keep to their schedule, and how much time is needed for treatment.

Answer 2

they refers to the patients

Answer 3

In that case the antecedent is patients