The mucosa of the esophagus is
A.stratified cuboidal epithelium.
B.pseudostratified columnar epithelium.
C.simple columnar epithelium.
D.nonkeratinized stratified squamous epithelium.
During the local inflammatory response, a lack of mast cells would result in
A.decreased antibody secretion.
B.interaction of antibodies with the pathogen.
C.activation of complement.
D.decreased capillary permeability.