An Increase in the Amount of High Altitude,ice Crystal (Cirrus)clouds

Multiple Choice

An increase in the amount of high altitude,ice crystal (cirrus) clouds would

A) cool the planet in a process called cloud-albedo forcing.
B) warm the planet in a process called cloud-greenhouse forcing.
C) warm the planet in a process called cloud-albedo forcing.
D) cool the planet in a process called cloud-greenhouse forcing.
E) have no effect on the planet's temperature because insolation is constant.