The lamina propria between the intestinal epithelium and the muscularis mucosae contains:

A. Blood and lymph vessels.

C. Nerve fibers.

E. Macrophages

F. Connective tissue. 

DISCUSSION: The mucosa of the small intestine encompasses the epithelium, the lamina propria, and the muscularis mucosae. The lamina propria between the epithelium and the muscularis mucosae contains blood and lymph vessels, nerve fibers, smooth muscle fibers, fibroblasts, macrophages, plasma cells, lymphocytes, eosinophils, and mast cells, as well as connective tissue elements.