Fill in the blank (_) in the following sentence from the following choices.
Sentence: Sam wanted to draw a flower or a train for the art festival, but the _ was prettier.

Choice 1: Sam wanted to draw a flower or a train for the art festival, but the flower was prettier.
Choice 2: Sam wanted to draw a flower or a train for the art festival, but the train was prettier.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
1
1.