The dogsled in the image moves at a constant speed in a straight line. Which of the following is true?(1 point)

The backward pull of friction is smaller than the forward pull of the dogs.
The forward pull of the dogs balances the backward pull of friction.
There is not enough information to answer the question.
The backward pull of friction is larger than the forward pull of the dogs.

The correct statement is: The forward pull of the dogs balances the backward pull of friction.