Which expression evaluates to $3\mathrm{.}5?$

int x $=7$;

int y $=1$;

Question $10$ options:

a$)$ x $*(1/2)$

b$)($x $/2\mathrm{.}0)$

c$)$ x$\mathrm{.}0/2$

d$)($x $/2)*1\mathrm{.}0$