Hihi!
The correct answer would be a producer, or in many cases a plant! They use a thing called photosynthesis it's pretty cool! There are two stages of photosynthesis. The first one is that light-dependent reactions and the Calvin cycle (which means light-independent reactions) and then light-dependent reactions, which take place in the thylakoid membrane, use light energy to make ATP and NADPH!
I hope I helped!
-Jailbaitasmr
