Fill in the blank (_) in the following sentence from the following choices.
Sentence: The rod cannot easily move around while being used to stir the liquid in the drum because the _ is wide.

Choice 1: The rod cannot easily move around while being used to stir the liquid in the drum because the rod is wide.
Choice 2: The rod cannot easily move around while being used to stir the liquid in the drum because the drum is wide.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
1
1.