Mucosae of a Healthy Intestinal Tract _____

Mucosae of a healthy intestinal tract _____.(Select all that apply.)

A) have a large number of activated T and B cells
B) harbor T cells bearing a very wide diversity of antigen specificities
C) contain intraepithelial lymphocytes
D) have large numbers of resident neutrophils
E) are populated with both α:β and γ:δ effector T cells.