$A$ body is thrown vertically upwards with a velocity $u$. Find the true statement from the following:

• A
  Both velocity and acceleration are zero at its highest point.
• B
  Velocity is maximum and acceleration is zero at the highest point.
• C
  Velocity is maximum and acceleration is $g$ downwards at its highest point.
• D
  Velocity is zero at the highest point and maximum height reached is $u^2 / 2g$.