Table below shows the access time and accessed counter for each of the block inside a disk cache. Block Last Access Time Counter A 7/12/2021, 17:05:23 10 B 7/12/2021, 14:12:63 23 C 7/12/2021, 10:12:63 15 7/12/2021, 18:12:63 11 E 7/12/2021, 1:12:63 21 Explain about Least Frequently Used (LFU) policy and state which block will be replaced if it is based on LFU.

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