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Problem 20: Assume a memory that can hold 4 pages, and an LRU replacement policy. The first four references to memory are to pages 6, 7, 7, 9. Assuming the next five accesses are to pages 7, 9, 0, 4, 9, which of those will hit in memory? (and which will miss?) To Fill in A for cache hits, B for misses.
A. 96.7
B. 97.9
C. 98.0
D. 99.4
E. 100.9

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