Trypsinogen, Chymotrypsinogen, Proelastase, Procarboxypeptidases, and Prophospholipases Are All Produced as Inactive

Trypsinogen, chymotrypsinogen, proelastase, procarboxypeptidases, and prophospholipases are all produced as inactive zymogens.Each of these zymogens can be activated by the enzyme ________, and this normally occurs in ________.

A) Enteropeptidase; the duodenal epithelium.
B) Enteropeptidase; the intestinal lumen.
C) Pepsin; the stomach.
D) Chymotrypsin; the pancreas.
E) Trypsin; the intestinal lumen.