Fill in the blank (_) in the following sentence from the following choices.
Sentence: Jason worried that Christopher had an ear infection after he complained of ear pain, so _ drove him to the doctor.

Choice 1: Jason worried that Christopher had an ear infection after he complained of ear pain, so Jason drove him to the doctor.
Choice 2: Jason worried that Christopher had an ear infection after he complained of ear pain, so Christopher drove him to the doctor.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
1
1.