Consider each of the choices below and a program P to be run on computer system X. Independently implementing each of these may or may not decrease tcpu(user),X(P). Select all which are guaranteed to decrease the time to execute Pin all cases. Reference: 1. Chapter 1 Lecture Notes $1.6 Performance Modify the compiler so the static instruction count of P is decreased. Redesign the CPU to decrease the CPI of P. Modify the hardware to decrease the clock frequency. Determine which functions of P are executed most frequently and handcode those functions in assembler so the code is more time efficient than that generated by the compiler. Redesign the CPU to increase the CPI of P. Modify the compiler so the static instruction count of P is increased. Modify the hardware to increase the clock period