Let vec v and vec a denote the velocity and acceleration respectively…

Let $\vec v$ and $\vec a$ denote the velocity and acceleration respectively of a body. Select the wrong statement(s)?
(a) $\vec a$ can be non zero when $\vec v = 0$.
(b) $\vec a$ must be zero when $\vec v = 0$.
(c) $\vec a$ must be zero when $\vec v ≠ 0$
(d) the direction of $\vec a$ must have some correlation with the direction of $\vec v$.