Consider Two Planets, Identical Except That One Has an Atmosphere

Consider two planets, identical except that one has an atmosphere rich in carbon dioxide and the other has no atmosphere, both at the same distance from their star. What will be true in comparing these planets?

A) The planet with the atmosphere will have a higher surface temperature.
B) The planet with the atmosphere will only gain energy from the star, while the other will only reflect energy.
C) The planet with the atmosphere will have the lower albedo.
D) The planet with the atmosphere will give out more radiant energy than it receives from its star.