giving out brain but don't beg because i will choose if the answer was right.

Two dogs are pushing against a box of dog treats from opposite sides. Dog 1 is pushing with 10 newtons of force to the right, and dog 2 is pushing with 15 newtons of force to the left. what is being applied to the box of dog treats?

A. 5 N to the left
B. 25 N to the left
B. 150 N to the left