Fill in the blank (_) in the following sentence from the following choices.
Sentence: William thinks it will be neat to work on the farm, but Aaron doesn't think so as _ likes getting their hands dirty.

Choice 1: William thinks it will be neat to work on the farm, but Aaron doesn't think so as William likes getting their hands dirty.
Choice 2: William thinks it will be neat to work on the farm, but Aaron doesn't think so as Aaron likes getting their hands dirty.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
1
2.