A
Below is a question with multiple-choice answers. Choose the correct option based on your reasoning.

### Question:
Why are many telescopes used far from cities?

### Choices:
A. The light from the cities makes it hard to see stars.
B. The noise from the cities vibrates the telescopes.
C. The power lines from the cities produce interference waves.
D. The pollution from the cities reflects starlight.

### Answer:
