A non-contact force, is a force that pushes or pulls an object without direct contact. Which example is showing a non-contact force?

(it shows 3 pictures, with words over them, the word describes the picture)
(Hitting a ball with a racket)
(Horse pulling a wagon)
(Magnets attracting to each other)

Here are my answer options

Hitting a ball with a racket
Horse pulling a wagon
Magnets attracting to each other

Magnets attracting to each other