A 30-year-old man with a gunshot wound to the abdomen has severe injuries involving the liver, duodenum, pancreas, and colon. Why is parenteral nutrition support preferred over enteral nutrition support?
a. It is less expensive.
b. It preserves gut mucosal mass and mucosal immunity.
c. It prevents gut permeability and translocation.
d. It is easy to start and administer nutrient requirement rapidly.