Here's a problem to solve: Why is it better to wear a white T-shirt than a dark blue T-shirt in the summer?

Among the 4 following options, which is the correct answer?

- A: Light-colored clothes let more air in.
 
- B: Light-colored clothes prevent sweating.
 
- C: Light-colored clothes are not as heavy as dark-colored clothes.
 
- D: Light-colored clothes reflect more sunlight than dark-colored clothes.
 