Deep in the Ocean Off the Shore of Japan Are

Deep in the ocean off the shore of Japan are communities nestled around hydrothermal vents where super-heated water springs from the bottom of the ocean.No sunlight ever penetrates to these deep regions.In these communities,bacteria have special enzymes that allow them to form organic matter by chemosynthesis.These communities frequently have worms,clams,shrimp,and many other organisms clustered together.
-In such a system,fish feed on shrimp that feed on the bacteria.This food chain represents a

A) tertiary consumer eating a secondary consumer eating a primary consumer.
B) primary consumer eating a secondary consumer eating a tertiary consumer.
C) consumer eating a producer which then consumes chemoautotrophic bacteria.
D) secondary consumer eating a primary consumer which then eats a producer.