How many additional clusters could be added to this RecoverPoint Environment?

An existing RecoverPoint/CL environment consists of one cluster at the main office and two off-site DR clusters. You have been asked to expand the environment to the maximum number of DR sites using RecoverPoint.

How many additional clusters could be added to this RecoverPoint Environment?
A . 2
B . 4
C . 5
D . 8

Answer: A