Introduction:
Light colored clothes are often preferred in hot weather because they help keep our bodies cool in sunlight. This is due to their ability to reflect more sunlight compared to darker colored clothes. Let's explore why light colored clothes are more effective in keeping us cool.

Explanation:
1. Reflection of sunlight:
Light colored clothes, such as white or pastel shades, have a higher albedo, which means they reflect more sunlight. When sunlight falls on light colored clothes, they reflect a significant portion of the light back into the environment, reducing the amount of heat absorbed by the clothing.

2. Absorption of heat:
On the contrary, darker colored clothes, such as black or dark blue, have a lower albedo, causing them to absorb more sunlight. This absorption of sunlight leads to an increase in heat absorbed by the clothing, making it warmer. The absorbed heat is then transferred to our body, causing discomfort and increasing the chances of overheating.

3. Air circulation:
Light colored clothes not only reflect sunlight but also help in maintaining better air circulation around our bodies. Lighter fabrics tend to be more breathable, allowing air to pass through and evaporate sweat more efficiently. This evaporation process helps in cooling down our bodies.

4. Heat emission:
When our body temperature rises, it emits heat in the form of infrared radiation. Light colored clothes reflect a portion of this heat, preventing it from being absorbed back into our bodies. This reflection helps in maintaining a lower body temperature and keeps us cooler in the sunlight.

Conclusion:
In conclusion, light colored clothes keep our bodies cool in sunlight because they reflect more sunlight, reducing the amount of heat absorbed. Additionally, light colored clothes promote better air circulation and help in the efficient emission of body heat, further contributing to our comfort in hot weather.

Answer is d)reflect more sunlight