Fill in the blank (_) in the following sentence from the following choices.
Sentence: We were writing about the tomboy for the story instead of the plane because the _ was alive.

Choice 1: We were writing about the tomboy for the story instead of the plane because the tomboy was alive.
Choice 2: We were writing about the tomboy for the story instead of the plane because the plane was alive.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
1
1.