Which of the following statements is true of cholera enterotoxin?: (A) Appears to produce its effect by stimulating adenyl cyclase activity in mucosal cells, (B) Causes destruction of the intestinal mucosa allowing for invasive infection, (C) Causes a net efflux of ions and water from tissue into the lumen of the large intestine, (D) Is a protein with a molecular weight of about 284,000
Answer is A. .