Fill in the blank (_) in the following sentence from the following choices.
Sentence: The parent of Neil looked sternly at Donald because _ had seen the child nearly get run over in the street.

Choice 1: The parent of Neil looked sternly at Donald because Neil had seen the child nearly get run over in the street.
Choice 2: The parent of Neil looked sternly at Donald because Donald had seen the child nearly get run over in the street.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
1
2.