A moving ball hits a stationary ball. The moving ball stops, and the stationary ball starts moving. In terms of force, what's happening during this event?

When the moving ball collides with stationary ball then the moving ball experiences a force which opposes its motion offered by stationary ball.

Simultaneously stationary ball is experiencing a force which causes the stationary ball to move.

There is simultaneous exchange of forces which changes the present inertia of balls.

The stationary ball exerts a force on the moving ball.

The moving ball exerts a force on the stationary ball.

Explanation:

When two objects collide, each object exerts a force on the other. Unlike energy, force can't be transferred between objects. Force has strength and direction, but it isn't a property of an object.