Final answer:
The correct answer is option c. Greg likely didn't ask his mother to drive him to school because he didn't want to bother her, as she was already busy and running late for an appointment.
Step-by-step explanation:
From the given context, we can infer that Greg did not ask his mum to drive him to school because he didn’t want to bother her (option c). This conclusion draws from the specified information mentioning that the mother is running late for an appointment and chooses to skip houses on her route, indicating a busy schedule and a possible reason not to disturb her.
Furthermore, Greg's reflection on the question of choosing a school implies a level of thoughtfulness and consideration, likely extending to his decision about asking for a ride. He may have recognized his mother's constraints and opted to address his transportation needs independently. This scenario demonstrates a common situation where children may avoid asking for favors to be considerate of their parents' circumstances.