Which Is NOT a Correct Association of Structure with Function

Which is NOT a correct association of structure with function among layers of the digestive tract?

A) The outermost serosa lubricates most of the tract among other abdominal organs.
B) The inner mucosa contains goblet cells that secrete mucus.
C) The submucosa contains blood vessels and Peyer's patches that circulate lymphatic fluid.
D) The muscularis consists of two layers of smooth muscles to force food through the tract.
E) The mucosa and submucosa are made of epithelial tissue.