Why Is the Human-Caused Damage to Coral Reefs of Particular

Why is the human-caused damage to coral reefs of particular concern?

A) The physical structure of reefs has an important influence on the movement of ocean currents.
B) Reefs represent unique ecosystems that obtain energy through chemosynthesis rather than photosynthesis.
C) Reefs function in the detoxification of marine pollutants.
D) Reefs provide food and shelter for the world's most diverse collection of marine invertebrates and fish.
E) Reefs are not particularly sensitive to human-caused disturbance.