\textbf{165.} If the mass of body B is $\dfrac{5}{4}$ the mass of body A, and the tension on body A is $\dfrac{4}{3}$ the tension on body B, what is the ratio of the kinetic energy of body A to the kinetic energy of body B?
(1) $\dfrac{15}{9}$ \qquad (2) $\dfrac{9}{10}$ \qquad (3) $\dfrac{6}{5}$ \qquad (4) $\dfrac{5}{6}$