A body is moving along a straight line under the influence of a constant power source. If the relation between the displacement $(\mathrm{s})$ of the body and time $(\mathrm{t})$ is $s \propto t^x$, then $x=$

• A

  1
• B

  2
• C

  $\frac{2}{3}$
• Correct answer
  D

  $\frac{3}{2}$

Hence, the correct answer is option: 'D'.