Which book, play or movie is this question meant for?
Answer:
Chef and Sous Chef are derived from the language of French. The Brigade System is a system of hierarchy found in restaurants and hotels employing extensive staff, commonly referred to as "kitchen staff" in English-speaking countries. The concept was developed by Georges Auguste Escoffier. This structured team system delegates responsibilities to different individuals who specialize in certain tasks in the kitchen.
I think it’s D is nonexistent for nearly 1 in 4 US households