Suppose a single$-$core CPU has a clock frequency of $1$GHz$.$ A context switch takes $800$ clock cycles to run. The polling interval is $600$ cycles, and it takes $900$ cycles to perform the processing for event A$.$

$($a$)$ Assume that the processing of event A must be finished within $1\mathrm{.}6$us from the time that event A occurred.

i$.$ Can polling meet the required response time?

ii$.$ Can interrupts meet the required response time?

$($b$)$ Assume that the processing of event A must be finished within $1\mathrm{.}8$us from the time that event A occurred.

i$.$ Can polling meet the required response time?

ii$.$ Can interrupts meet the required response time?$$