Fill in the blank (_) in the following sentence from the following choices.
Sentence: Sarah was pulled over by Cynthia who was a police officer because _ was caught speeding.

Choice 1: Sarah was pulled over by Cynthia who was a police officer because Sarah was caught speeding.
Choice 2: Sarah was pulled over by Cynthia who was a police officer because Cynthia was caught speeding.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
1
1.