In the bounded buffer problem, when does a consumer process get blocked at the wait$($mutex$)$ statement?

do $\{$

$...$

$/*$ produce an item in next produced $*/$

$...$

wait$($empty$)$;

wait$($mutex$)$;

$...$

$/*$ add next produced to the buffer $*/$

$...$

signal$($mutex$)$;

signal$($full$)$;

$\}$ while $($true$)$;

Figure $5\mathrm{.}9$ The structure of the producer process.

do $\{$

wait$($full$)$;

wait$($mutex$)$;

$...$

$/*$ remove an item from buffer to next consumed $*/$

$...$

signal$($mutex$)$;

signal$($empty$)$;

$...$

$/*$ consume the item in next consumed $*/$

$...$

$\}$ while $($true$)$;

Figure $5\mathrm{.}10$ The structure of the consumer process.

Group of answer choices

When another consumer is trying to consume contents from a buffer

When another producer is trying to produce content into a buffer

Both of the above

None of the above