Fill in the blank (_) in the following sentence from the following choices.
Sentence: Drinking alcohol suited Derrick but not Jeffrey because _ didn't have a lot of self discipline and couldn't control his intake.

Choice 1: Drinking alcohol suited Derrick but not Jeffrey because Derrick didn't have a lot of self discipline and couldn't control his intake.
Choice 2: Drinking alcohol suited Derrick but not Jeffrey because Jeffrey didn't have a lot of self discipline and couldn't control his intake.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
2
2.