A particle moves a distance x in time t according to equation $\mathrm{x}={\left(\mathrm{t}+5\right)}^{-1}.$ the acceleration of particle is proportional to:

• A

  ${\left(\mathrm{velocity}\right)}^{2/3}$

• B

  ${\left(\mathrm{velocity}\right)}^{3/2}$

• C

  ${\left(\mathrm{distance}\right)}^2$

• D

  ${\left(\mathrm{distance}\right)}^{-2}$