Answer from cs61c-ch (hani aldhafari 14962689) for Question 1
well, it depends on how often the memory location is referenced. the idea of a cache requires that the mostly accessed must be the one placed in the fastest access region of the cache while the least accessed should be placed toward the bottom of the cache. if the location given is accessed often, then one should expect it to be on the top of the cache for faster access.