Adiabatic Temperature Changes Occur Even Though Heat Is not Added

Multiple Choice

Adiabatic temperature changes occur even though heat is not added or subtracted from the atmosphere because_____ .

A) molecules are either compressed or expanded which changes their motion
B) the ground is heated or cooled and it radiates energy into the adjacent air
C) heat is added in some other form to change the temperature
D) the atmosphere moves into a different temperature strata