Fill in the blank (_) in the following sentence from the following choices.
Sentence: Adam got full when eating dinner with Leslie on Sundays because _ had a very small stomach.

Choice 1: Adam got full when eating dinner with Leslie on Sundays because Adam had a very small stomach.
Choice 2: Adam got full when eating dinner with Leslie on Sundays because Leslie had a very small stomach.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
1
2. This is because the sentence states "Adam got full when eating dinner with Leslie on Sundays because _ had a very small stomach