Select the incorrect statement about virtual memory
(1) It increase the degree of multiprogramming.
(2) Does not allow address space to be shared by several process
(3) reduces the context switching overhead
(4) Less I/O or loading and unloading for individual user process
1
1, 2 and 3 only
2
3 and 4 only
3
2 and 3 only
4
2, 3 and 4 only