Ruby has just eaten a large meal and is now laying down on the couch to relax. Her _________________ nervous system becomes active, allowing her to digest her meal. She decides to watch a horror movie, which causes her ___________________ nervous system to take over as her heartbeat _________________ and sweat glands become active.

• A. Parasympathetic, sympathetic, decreases.
• B. Parasympathetic, sympathetic, increases.
• C. Sympathetic, parasympathetic, decreases.
• D. Sympathetic, parasympathetic, increases.