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

### Question:
The first microscopes were built in the 1600s. Microscopes have improved since then, but still perform the same job. How do microscopes most help scientists?

### Choices:
A. They make small objects easier to see.
B. They make distant objects appear closer.
C. They reduce the glare from shiny objects.
D. The improve the brightness of dim objects.

### Answer:
