The Difference Between "Moist" and "Dry" Adiabatic Rates Is a Result

Multiple Choice

The difference between "moist" and "dry" adiabatic rates is a result of the fact that _______.

A) saturated air is always unstable
B) an unsaturated air parcel expands more rapidly than a saturated air parcel
C) moist air weighs less than dry air
D) latent heat is released by a rising parcel of saturated air
E) moist air weighs more than dry air