Consider an array a[0] to a[9] of 10 elements such that a[i] contains 7^i. So a[0] = 1, a[1] = 7, a[2] = 49, etc. Let $s0 contain the base address of array "a". Write MIPS code fragments to perform the following operations: a) Put the value 154 in a[5], storing it in memory. b) Get a[7] from memory and put it in register $t7. c) Add the contents of first five elements of the original array where each element has an even index (i = 0, 2, 4...) and put the result in $v0