2. Parrotfish are herbivores that are found in coral reefs. To escape predation, a parrotfish will graze with a rabbitfish, which has venomous spines at the end of its pelvic fins. The rabbitfish does not benefit from this relationship.

Which type of relationship do the parrotfish and the rabbitfish have in the coral-reef environment?

a. matualistic
b. predator-prey
c. parasitic
d. commensal​