Fill in the blank (_) in the following sentence from the following choices.
Sentence: It seemed more likely that Logan would publish a scientific paper rather than Nelson because _ had not done any research.

Choice 1: It seemed more likely that Logan would publish a scientific paper rather than Nelson because Logan had not done any research.
Choice 2: It seemed more likely that Logan would publish a scientific paper rather than Nelson because Nelson had not done any research.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
2
2.