Which of the following can be labeled as autotrophs?

a. Primary producers

b. Detritivores

c. Carnivores

d. Scavengers

The correct answer is A. primary producers. That is because autotrophs, unlike heterotrophs who consume food from others, create their own food. Plants are autotrophs because they photosynthesize and make food and nutrients and energy using sun that they take with their chloroplasts and create energy for themselves.