The angular velocity and the amplitude of a simple pendulum are $\omega$ and $a$ respectively. At a displacement $X$ from the mean position,if its kinetic energy is $T$ and potential energy is $V$,then the ratio of $T$ to $V$ is:

• A
  $X^2 \omega^2 / (a^2 - X^2 \omega^2)$
• B
  $X^2 / (a^2 - X^2)$
• C
  $(a^2 - X^2 \omega^2) / X^2 \omega^2$
• D
  $(a^2 - X^2) / X^2$