Fill in the blank (_) in the following sentence from the following choices.
Sentence: Brett woke up early in the morning but not Michael because _ had an early bedtime.

Choice 1: Brett woke up early in the morning but not Michael because Brett had an early bedtime.
Choice 2: Brett woke up early in the morning but not Michael because Michael had an early bedtime.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
1
2.