Question: Which statement correctly describes a relationship between two human body systems?

  Options: 
 A. The digestive system absorbs nutrients which are transported by the nervous system.
 B. The digestive system absorbs nutrients which are transported by the circulatory system.
 C. The circulatory system exchanges gases which are transported by the nervous system.
 D. The circulatory system exchanges gases which are transported by the digestive system.
Answer: B