Fill in the blank (_) in the following sentence from the following choices.
Sentence: Brett was told by Dennis that they had anemia so _ spent time answering questions to the other about supplements.

Choice 1: Brett was told by Dennis that they had anemia so Brett spent time answering questions to the other about supplements.
Choice 2: Brett was told by Dennis that they had anemia so Dennis spent time answering questions to the other about supplements.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
2
1.