Question 6: Compilers can have a profound impact on the performance of an application. Assume that for a program, compiler A results in an instruction count of 1.0E9(1.0109) and has an execution time of 1.1s, and compiler B results in an instruction count of 1.2E9 and 1.5s. A. Calculate the average CPI of compiler A and B assuming a clock cycle time of 1ns. B. Compiler C creates for the same code 6.0E8 instructions and has an average CPI of 1.1. What is the CPU execution time of Compiler C assuming a clock cycle time of 1ns