A child pushes a desk with a force of 15 N to the right. The desk accelerates to the right. Which of the following statements correctly represents Newton’s third law and the interaction between the child and desk?
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1) The desk exerted exactly 15 N of force on the child, but the force is directed to the left.

2) The desk exerted slightly more than 15 N of force on the child, but the force is directed to the left.

3) The desk exerted slightly less than 15 N of force on the child, but the force is directed to the left.

4) The desk did not exert any force on the child.