What happens next in this paragraph?

How to become a stage director
Be part of your school's drama department.
When you're in high school, get involved in your school's drama department. Some theater departments allow students to direct plays.
Available choices: (I) When a teacher asks someone else to write a scene, you lead that act. When an actor asks someone else to film a scene, you lead that character directly in front of their camera. (II) Other schools even give acting classes for students. There will be slack in the classroom, so reach out to the drama department. (III) If you can't direct, get experience doing every other aspect of theater. This will help make you marketable in addition to helping you get into theater college programs. (IV) Some require you to be part of the production. See if there is a history of drama at your school, especially if you are teaching young children.
(III)