Kiley, Jermaine, and Gunther are playing tug-of-war. Kiley and Jermaine are on the same side of the rope, and Gunther is on the other side. Kiley is exerting a force of 20 N, and Jermaine is exerting a force of 25 N.

Kiley and Jermaine pull in the same direction, so their forces add: 20 N + 25 N = 45 N. For the forces to be balanced, Gunther must pull with an equal 45 N force in the opposite direction. Therefore, the correct choice is 45 N in the opposite direction as Kiley and Jermaine.

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