The acceleration of a body in a non-uniform circular motion is $5\, ms^{-2}$. Which one of the following is correct?

• A
  The radial acceleration and the tangential acceleration are $3\, ms^{-2}$ and $4\, ms^{-2}$ respectively.
• B
  The radial and the tangential accelerations are $2\, ms^{-2}$ and $3\, ms^{-2}$ respectively.
• C
  The radial and the tangential accelerations are both $5\, ms^{-2}$.
• D
  The radial and the tangential acceleration are $5\, ms^{-2}$ and $3\, ms^{-2}$ respectively.