Circulating antibodies are synthesized and secreted by which of the following cells

A． They are continuous with bile canaliculi
B．They are surrounded by a well developed basal lamina
C．They are lined by nonfenestrated endothelial cells
D．They deliver blood to the central vein
E．They deliver blood to portal vein

A． It possesses islets of Langerhans
B．It possess serous demilunes
C．It contains more beta cells than alpha cells
D．It exhibits large, electron-lucent granules in its S cells.
E．Its acinar cells contain a round nucleus