(a) [5 points] Explain how offering more complex addressing modes can reduce the overall number of instructions needed to implement a program. (b) Give the minimum number of MIPS instructions needed to load each of the following array elements into a variable that is held is a register. Assume the address of the beginning of each array is also stored in register. Do not give any MIPS assembly code, just the number of instructions that would be required. i. [5 points] x = A[4] ii. [5 points] y = C[i + 32] iii. [5 points] = A[i + j] iv. [5 points] x = B[i j +16]