An automobile moves on a road with a speed of $54{\text{km h}}^{-1}$. The radius of its wheels is $0.45\text{m}$ and the moment of inertia of the wheel about its axis of rotation is $3{\text{kg m}}^2$. If the vehicle is brought to rest in $15\text{s}$, the magnitude of average torque transmitted by its brakes to the wheel is:

1. A
   $2.86{\text{kg m}}^2{\text{s}}^{-2}$
2. B
   $6.66{\text{kg m}}^2{\text{s}}^{-2}$
3. C
   $8.58{\text{kg m}}^2{\text{s}}^{-2}$
4. D
   $10.86{\text{kg m}}^2{\text{s}}^{-2}$