Consider the virtual page reference string1, 2, 3, 2, 4, 1, 3, 2, 4, 1On a demand paged virtual memory system running on a computer system that main memory size of 3 pages frames which are initially empty. Let LRU, FIFO and OPTIMAL denote the number of page faults under the corresponding page replacements policy. Then(A) OPTIMAL < LRU < FIFO(B) OPTIMAL < FIFO < LRU(C) OPTIMAL = LRU(D) OPTIMAL = FIFO

Consider the virtual page reference string1, 2, 3, 2, 4, 1, 3, 2, 4, 1

1.	Consider the virtual page reference string1, 2, 3, 2, 4, 1, 3, 2, 4, 1On a demand paged virtual memory system running on a computer system that main memory size of 3 pages frames which are initially empty. Let LRU, FIFO and OPTIMAL denote the number of page faults under the corresponding page replacements policy. Then(A) OPTIMAL < LRU < FIFO(B) OPTIMAL < FIFO < LRU(C) OPTIMAL = LRU(D) OPTIMAL = FIFO
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