Which of the following can represent ancillary services for movie studios?

Ancillary services for movie studios are those additional services that support the main production process but are not the primary function of filmmaking itself. Equipment rentals provide essential tools and technology that studios need to create films, making them a critical support service in the production process. By offering various equipment such as cameras, lighting, and sound gear, rental companies enable studios to access the necessary resources without the hefty investment of purchasing them outright.

Location scouting and film editing are also vital components of film production but are typically considered part of the production process rather than ancillary services. Advertising campaigns, while important for promoting a movie, fall under marketing rather than direct production support. Therefore, equipment rentals clearly align with the concept of ancillary services for movie studios as they provide crucial resources an existing studio needs during the filmmaking process.