What Is the Immigration Problem for DVCs

What is the immigration problem for DVCs?

A) Too many people are allowed to move from DVCs to IACs, and IAC policies tend to favor the movement of the most productive DVC workers.
B) Too many people are allowed to move from DVCs to IACs, and IAC policies tend to favor the movement of the least productive DVC workers.
C) Too few people are allowed to move from DVCs to IACs, and IAC policies tend to favor the movement of the most productive DVC workers.
D) Too few people are allowed to move from DVCs to IACs, and IAC policies tend to favor the movement of the least productive DVC workers.