The Large and Remarkable Pogonophoran Annelids Live near Deep Ocean

The large and remarkable pogonophoran annelids live near deep ocean hydrothermal (volcanic) vents where food items are scarce.How do pogonophorans, which have completely lost their digestive tracts, obtain most of their nutrition?

A) They are able to conduct photosynthesis.
B) Their tissues harbor endosymbiotic bacteria that fix carbon by oxidizing hydrogen sulfide and methane.
C) They fix carbon from minerals found in mud on the ocean floor.
D) They filter algae from ocean water.
E) They feed on fish that become entangled in their tentacles.