(Answer fast for brainliest.)

Dew can condense out of the air overnight. When Dew Forms, it is a sign that ___.

A) Precipitation occurred.
B) The relative humidity reached 100%
C) The temperature dropped below 0 °C
D) There was surface runoff at some point.

Respuesta :

the answer is NOT D. do not use D. the answer looks to be B.