Which of the Following Statements About Movement of Food in the Gut

Multiple Choice

Which of the following statements about movement of food in the gut is false?

A) Three sphincters are found in the vertebrate gut.
B) Peristalsis can move food in both directions.
C) Stretched smooth muscle contracts.
D) Peristalsis begins when food enters the glottis.
E) The muscle in a sphincter is normally contracted.