What does this statement The energy passed from producers to consumers (herbivores) does not go back to producers (autotrophs) states about the flow of energy?

What does this statement The energy passed from producers to consumer

1.	What does this statement The energy passed from producers to consumers (herbivores) does not go back to producers (autotrophs) states about the flow of energy?
A.	Flow is unidirectional
B.	Flow has no specific direction
C.	Flow is bidirectional
D.	Flow is multidirectional
Answer» B. Flow has no specific direction