$\{$ int $*$ptr $=$ NULL;int a $=10,$ b $=20$;ptr $=$ &b;return $0$; $\}8)$Select onea$)$ a is dynamically bound to a memory cell at compile timeb$)$ a is statically bound to a memory cell at runtime timec$)$ a is dynamically bound to a memory cell at runtime timed$)$ a is statically bound to a memory cell at compile time$9)$select onea$)$ ptr is statically bound to b at compile timeb$)$ ptr is dynamically bound to b at compile timec$)$ ptr is dynamically bound to b at runtime timed$)$ ptr is statically bound to b at runtime time