Which of the following used to be an Oscar category?

Oscar has phased out a handful of categories over the years, but Best Assistant Director is one that many people in the film industry would like to see return. Assistant directors are vital to a film set — especially as moviemaking becomes a bigger and bigger undertaking. Many films need multiple assistant directors to stay on track.

Asked by Beth Sederstrom · Last updated 5 years ago · 1.1K views · SOURCE