Consider two computers A and B$,$ A has a single processor of $3\mathrm{.}5$ GHz$,$ and B has $8$ cores each of which is $1\mathrm{.}5$ GHz$.$ Both computers use the same instruction set. Assume we have a program to execute in both computers, for the following, which computer is faster and how much it is faster? justify your answer.

a$.0\mathrm{.}0$ of the program code can be executed in parallel.

b$.0\mathrm{.}5$ of the program code can be executed in parallel.

a$.0\mathrm{.}95$ of the program code can be executed in parallel.