$1.$Which section of the process contains program instructions? options: A$.$Text B$.$Data C$.$Stack D$.$Heap $2.$PCB stores the process $\_\_\_\_\_.$ options: A$.$Statistics B$.$Code C$.$Resources D$.$Context $3.$Theoretical speedup of a program that is $75\%$ parallel and $25\%$ serial on $3$ processing cores is options: A$\mathrm{.}3$ B$\mathrm{.}2\mathrm{.}75$ C$\mathrm{.}2\mathrm{.}5$ D$\mathrm{.}24.$Which multithreading model is implemented in Windows? options: A$.$One$-$to$-$One B$.$One$-$to$-$Many C$.$Many$-$to$-$Many D$.$Many$-$to$-$One $5.$Which multithreading model is implemented in Windows? options: A$.$Thread Libraries B$.$Thread Pools C$.$POSIX I DONT NEED CHART GPT ANSWERS