What happens when air reaches its dew point?

A. condensation

B. relative humidity is 100%

C. humidity decreases

D. clouds form

condensation

Explanation:

If the air cools to its dew point temperature (in other words if it reaches saturation with respect to water vapor), condensation is forced and some of the water vapor in the air condenses into liquid water droplets

i i think it might b c

show options, then i will gladly answer you question.

have a good day.