Please Help!

Levi and Clara are trying to move a very heavy box. Levi is pushing the box with a force of 30 N, and Clara is pulling the box with a force of 50 N. The box exerts a frictional force of 65 N.

Which best explains the forces?

There is a net force of 15 N in the direction of Levi.
There is a net force of 15 N in the direction of Clara.
There is no net force, so the forces are balanced.
There is no net force, so the forces are unbalanced.