Q$2$: Let$$s try to fix the code with a mutex

mutex$\_$t m;

int i $=0$; $//$global variable

Two threads run through this code:

if $($i $==0)\{$

mutex$\_$acquire$($&m$)$;

i$++$;

mutex$\_$release$($&m$)$;

$\}$

What are the possible values of i after both threads run?

a$)0$

b$)1$

c$)2$

d$)1$ or $2$

e$)$ None of the above