Problem 2.1 in the book, with the following modifications, considering the following\ designs for the problem:\ A. 5-stage pipeline clocked at 4f\ B. 5-stage pipeline clocked at f\ C. 5-way multiprocessor in which each processor is 5-stage pipeline clocked at 4f\ D. 5-way multiprocessor in which each processor is 5-stage pipeline clocked at f\ Compare these four designs with the base machine, which is the single-cycle processor\ clocked at f