Problem 1 Points (50) Consider two different implementations of the same instruction set architecture. There are four classes of instructions, A, B, C, and D. The clock rate and CPI of each implementation are given in the following table. Clock Rate 1.5GHz 2GHz CPI Class A CPI Class B CPI Class C P1 P2 A. Given a program with 106 instructions divided into classes as follows: 10%class A, 20% class B. 50% class C and 20% class D, which implementation is faster? B. Find the clock cycles required in both classes? C. Find the global CPI for both implementations