Pepsin is secreted as an inactive precursor called pepsinogen because?

A. pepsin as an enzyme is quickly destroyed by the alkaline food from the mouth
B. all digestive enzymes pass through a precursor stage
C. pepsin is a proteolytic enzyme and might attack the stomach tissues
D. pepsin is not required in large quantities

Correct Answer: Option B

B. all digestive enzymes pass through a precursor stage