Fill in the blank (_) in the following sentence from the following choices.
Sentence: Donald wanted to get a milkshake but Nick didn't want one. _ had a lactose intolerance.

Choice 1: Donald wanted to get a milkshake but Nick didn't want one. Donald had a lactose intolerance.
Choice 2: Donald wanted to get a milkshake but Nick didn't want one. Nick had a lactose intolerance.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
2
2.