A disc is performing pure rolling on smooth stationary surface with constant angular velocity as shown. At any instant for the lower most point of the disc.

Question

$\begin{array}{1 1} \text{Velocity is v, acceleration is zero} \\ \text{Velocity is zero, acceleration is zero} \\ \text{Velocity is v, acceleration is $\large\frac{v^2}{R}$} \\ \text{Velocity is zero, acceleration is $\large\frac{v^2}{R}$} \end{array}$