Assume demand paging with three frames. Consider the following page reference string:

7, 2, 3, 1, 2, 5, 3, 4, 6, 7, 7, 1

If OPT replacement is used, the number of page faults will be

a. 8

b. 9

c. 10

d. 7

e.None of the above

If LRU replacement is used, the number of page fault will be

a.

8

b.

9

c.

10

d.

11

e.

None of the above