How many species of black coral have been discovered on the seabed of the northern Pacific Ocean in October 2020?

How many species of black coral have been discovered on the seabed of

1.	How many species of black coral have been discovered on the seabed of the northern Pacific Ocean in October 2020?
A.	2
B.	3
C.	4
D.	5
E.	6
Answer» C. 4