Fill in the blank (_) in the following sentence from the following choices.
Sentence: She wanted to add color to her room so she painted one side and added wallpaper to the other. The _ was brightened.

Choice 1: She wanted to add color to her room so she painted one side and added wallpaper to the other. The room was brightened.
Choice 2: She wanted to add color to her room so she painted one side and added wallpaper to the other. The wallpaper was brightened.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
1
1.