Concept: The brain box is the bony structure that encloses and protects the brain in humans.Explanation: The skull is the part of the body that surrounds the brain completely. It acts like a protective case or box for the brain. Although the head includes the skull, face, and other soft tissues, the brain box specifically refers to the bony covering called the skull. The spinal column protects the spinal cord, not the brain itself, and the skeleton is the whole framework of all bones in the body.Answer: B. skull