Fill in the blank (_) in the following sentence from the following choices.
Sentence: Joseph reached their goals more often than Derrick due to the fact that _ was very determined.

Choice 1: Joseph reached their goals more often than Derrick due to the fact that Joseph was very determined.
Choice 2: Joseph reached their goals more often than Derrick due to the fact that Derrick was very determined.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
1
1.