1. Assume that integers f. g, h, i, and j are represented by registers $t0 through $t4, respectively. Write short MIPS programs (just the instructions) to execute the following mathematical operations (currently in C code) using the minimal number of MIPS assembly instructions: a. f- g+h+i+j b. f-g+ (h + 5); d. f-g+ G - 2)