8th grade science question on forces, please help me im soooo close and i dont understand this one :)

Answer: The dog is pull the stick away from the boys hand
the boy is also pulling if the boy lets go of the stick the dog will fall due to law of action and reaction
The man is pushing the horse cart up the hill to do so he has to apply force
Explanation:
Answer:
The stick is being pulled to the right by the dog, but that force is being counter-acted by the boy, who is pulling the stick to the left.
The wagon is being pulled to the right by the horses, and the man is also pushing the cart, applying force to make it go right.