You are presented with the quiz "Autotrophs make food from what?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "producers make food from inorganic molecules" and "autotrophs are referred to as producers". So, what's the best answer to the question?

Possible answers:
[1]. Converting waste.
[2]. members of their own species
[3]. Chemical energy
[4]. photosynthesis
[5]. that material's properties
[6]. inorganic molecules
[7]. Organic compounds
[8]. Chlorophyll
Answer:
[6].