A Gas at 50° C with a Relative Humidity of 100

A gas at 50° C with a relative humidity of 100% is cooled to 37° C. Which of the following will occur?
1) Condensation on surfaces
2) Visible droplet formation
3) Warming of the adjacent air

A) 1, 2, and 3
B) 1 and 2 only
C) 1 and 3 only
D) 2 and 3 only