Fill in the blank (_) in the following sentence from the following choices.
Sentence: Nelson nonchalantly told Ian that he had been dumping Acetone in his yard.  _ was appalled..

Choice 1: Nelson nonchalantly told Ian that he had been dumping Acetone in his yard.  Nelson was appalled..
Choice 2: Nelson nonchalantly told Ian that he had been dumping Acetone in his yard.  Ian was appalled..
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
2
2.