Fill in the blank (_) in the following sentence from the following choices.
Sentence: Bill replaced his entire grass lawn for his house with new rock. The _ was trendy.

Choice 1: Bill replaced his entire grass lawn for his house with new rock. The lawn was trendy.
Choice 2: Bill replaced his entire grass lawn for his house with new rock. The rock was trendy.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
2
2. The rock was trendy.