She has a weak immune system, she is happy that they are chaperoning, the trip is important because she wants to see her friends
A isn't correct because its singular and you use is not "are"
so your answer is A
The answer is:
A paidogogos accompanied a boy throughout his day.
A boy could be punished by his paidogogos.
A paidogogos had to be capable of helping with schoolwork.
In the excerpt from "The Ancient City," the author Numa Denis Fustel de Coulanges describes how a seven-year-old child from an affluent family was guarded by a paidogogos, a slave who scorted the boy everywhere, even to school to check if he did his work. In addition, the paidagogos had the power to discipline the child if he misbehaved. Finally, the paidagogos also needed to be proficient in the educational field to evaluate the boy after doing his homework or to provide assistance.