Which organism lives in a colony with many others of the same cell type?

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.

Which of these statements is true about autotrophs, but not heterotrophs? a. they use sugar and oxygen to make carbon dioxide and water. b. they use chlorophyll and oxygen to make carbon dioxide and water. c. they use sunlight, water, and carbon dioxide to make sugars. d. they use sunlight, water, and oxygen to make chlorophyll.

Due tonight 10 points will mark brain