Q. If the memory access time is denoted by ‘ma’ and ‘p’ is the probability of a page fault (0 <= p <= 1). Then the effective access time for a demand paged memory is

• (A) p x ma + (1-p) x page fault time
• (B) ma + page fault time
• (C) (1-p) x ma + p x page fault time
• (D) none of the mentioned