Now suppose we measure the code for the same program from two different compilers and obtain the following data: Instruction counts $($in billions$)$ for each instruction class Code from Compiler $1$ Compiler $2$ A $5$ B $1$ C $11011$ Assume that the computer's clock rate is $4$ GHz$.($a$)$ Which compiler will execute faster according to CPU execution time? $($b$)$ Which compiler will execute faster according to MIPS?