Fill in the blank (_) in the following sentence from the following choices.
Sentence: Aaron had to ask Kyle to borrow his tools to fix his air conditioner as _ always bought tools to fix his appliances.

Choice 1: Aaron had to ask Kyle to borrow his tools to fix his air conditioner as Aaron always bought tools to fix his appliances.
Choice 2: Aaron had to ask Kyle to borrow his tools to fix his air conditioner as Kyle always bought tools to fix his appliances.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
2
1.