Question

how are freeze-frames created by an editor?

by holding the camera still on a subject

by repeating the same frame for whatever length of time is required for the desired effect

by stopping the projector on a single image of the movie

by placing the film in cold-temperature storage

by making the subject stay perfectly still in front of the camera

Explanation:

A freeze-frame is an editing technique where a single frame is looped to create the illusion of a still image. Holding the camera still, stopping a projector, cold storage, or having a subject stay still are not editor-driven post-production methods for creating freeze-frames. The editor creates this effect by repeating the same frame for the needed duration.

Answer:

by repeating the same frame for whatever length of time is required for the desired effect