You are presented with the quiz "What makes food from CO and H 2? " 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 "among the small inorganic molecules which are economically attractive are CO and H 2 ". So, what's the best answer to the question?

Choose your answer from:
(A). producers.
(B). carbon atoms.
(C). Most plants.
(D). production lines.
(E). light energy.
(F). trees.
(G). air pockets.
(H). Chlorophyll.
The answer is:
(A).