Assume we can enhance the performance of a machine by adding vector hardware to it. When a computation is run in vector mode on the vector hardware, it is 10 times faster than the normal mode of execution. The percentage of time that could be spent using the vector mode is called percentage of vectorization. a. What percentage of vectorization is needed to achieve an overall speedup of 2? b. What percentage of the total computation run time is spent in vector mode if an overall speedup of 2 is achieved? c. Assume you have measured the percentage of vectorization of the program to be 70%. The hardware design group estimates that it can speed up the vector hardware even more with significant additional investment. You wonder if the compiler crew could increase the percentage of vectorization instead. What percentage of vectorization would the compiler team need to achieve in order to obtain a 2x speedup (vs. the 70% vectorization) in the vector unit