[A] : Pancreas is the second largest of the di- gestive glands.
[R]: It plays a dual role in the body serving as both exocrine and an endocrine gland.
A. If both A and R are true and R is the correct explanation of A
B. If both A and R are true but R is not the correct explanation of A
C. If A is true and R is false
D. If both A and R are false