Assume the following sequence of blocks are fetched into the same set of a 4-way set associative cache that is initially empty: b7,b5,b1,b5,b4,b5,b7,b4,b8,b8,b7,b8 ,b9,b1,b1,b7,b1,b8,b1,b2,b9,b9,b5,b 2 Assume the placement policy is increasing line order (i. e., line 0 to line 3), and the replacement policy is least-frequently used. After the sequence completes, which one below lists the resulting lines ordered from line 0 to line 3?