1. [40pts] The results of the benchmark named P running on the CPU A has an IC (Instruction Count) of 2.389*1012 and an execution time of 750 seconds. a. [5pts] Find the CPI (Cycle Per Instruction) if the clock cycle time is 0.333 nanoseconds. b. [5pts] Find the increase in CPU time if the number of instructions of the benchmark is increased by 2% without affecting the CPI. C. (5pts] Find the increase in the CPU time if the number of instructions of the benchmark is increased by 10% and the CPI is increased by 20%. d. (10pts] Suppose that we are developing a CPU B with a 4 GHz clock rate. We have also added some additional instructions to the instruction set so that the number of instructions has been increased by 5%. The execution time is reduced to 725 seconds. Find the new CPI. e. (10pts] This CPI value is larger than obtained in 1.a as the clock rate was increased from 3 GHz to 4 GHz. Determine whether the increase in the CPI is similar to that of the clock rate. If they are dissimilar, why? f. (5pts] By how much has the CPU time been reduced