A$)$ A processor takes $16$ seconds to execute a program, and its clock rate is $3\mathrm{.}2$GHz$.$ If its CPI is $4,$ how many instructions are executed by the program? $(4$pts$)$B$)$ Processors A & B execute the same program P$,$ and on both systems, it takes the same number of instructions. Processor A executes program P $1\mathrm{.}5$x slower than Processor B$.$ If Processor A$\text{'}$s clock frequency is $1\mathrm{.}6$x faster than Processor B$,$ how many times better is Processor B$\text{'}$s IPC $(1/$CPI$)?(4$pts$)$