You are given two implementations of the same ISA. The instructions in that ISA can be divided into

four classes according to their CPI $($classes A$,$ B$,$ C$,$ and D$).$ P$1$ with a clock rate of $3\mathrm{.}5$ GHz and CPIs of $2,2\mathrm{.}5,3\mathrm{.}2,$

and $4,$ and P$2$ with a clock rate of $3\mathrm{.}7$ GHz and CPIs of $1\mathrm{.}7,2\mathrm{.}7,3\mathrm{.}8,$ and $4.$ Given a program with a dynamic instruction

count of $1\mathrm{.}0$E$8$ instructions divided into classes as follows: $15\%$ class A$,20\%$ class B$,45\%$ class C$,$ and $20\%$ class D$,$

a$.(10$ points$)$ Which processor executes the program faster?

b$.(10$ points$)$ What is the global CPI for each implementation?

c$.(10$ points$)$ Find the clock cycles required in both cases.