What happens to an object as it absorbs radiant energy? a its temperature increases. b its temperature decreases. c its thermal energy decreases. d its potential energy increases.

A Its temperature increases.

Explanation:

When an objects absorbs radiant energy obviously its temperature would shoot up. It will increase up to the temperature of the incident radiation and after both that have achieved the same temperature that both are in thermal equilibrium then its temperature won't increase any further.  Now it won't absorb any further energy from the radiant energy. All other option are irrelevant in the context of this question.