If a major at a college are filled to capacity, what is preferable for the college to do?

Re #10

Note that UCB EECS (and other CoE majors) does A. UCB L&S CS (and other L&S majors) do B, although only a few popular majors are oversubscribed (CS (3.3), economics (3.0), psychology (3.2), art practice, and a few others). UCB business does B.

Note that, several years ago, L&S CS was an open major (2.0 needed to enter). Enrollment has shot up rapidly since then.