Consider two different implementations, MI and M2, of the same instruction set. There are three classes of instructions (A, B, C, and D) in the instruction set. Machine Ml has a clock rate of 500 MHz and Machine M2 has a clock rate of 600 MHz. The average number of cycles for each instruction class and their frequencies (for a typical program) are as follows: Instruction Class Frequency CPI (Cycles Per Instruction) Machine MI Machine M2 A 40% 2 2 25% 3 2 25% 3 3 D 10% 4 Calculate the average CPI for machine Mi? B 5 O 5.00 2.80 02.45 3.40