Fill in the blank (_) in the following sentence from the following choices.
Sentence: Dennis showed Samuel his 100% grade on the geography exam last week..  _ was happy for him.

Choice 1: Dennis showed Samuel his 100% grade on the geography exam last week..  Dennis was happy for him.
Choice 2: Dennis showed Samuel his 100% grade on the geography exam last week..  Samuel was happy for him.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
2
2.