The average distance of the Earth from the Sun is $L_{1}$. If one year of the Earth is $D$ days,then one year of another planet whose average distance from the Sun is $L_{2}$ will be:

• A
  $D\left(\frac{L_{2}}{L_{1}}\right)^{\frac{1}{2}} \text{ days}$
• B
  $D\left(\frac{L_{2}}{L_{1}}\right)^{\frac{3}{2}} \text{ days}$
• C
  $D\left(\frac{L_{2}}{L_{1}}\right)^{\frac{2}{3}} \text{ days}$
• D
  $D\left(\frac{L_{2}}{L_{1}}\right) \text{ days}$