Question

Match the following. 
\[ \begin{array}{|c|l|c|l|} \hline \text{Hormone} & & \text{Endocrine gland} & \\ \hline \text{A} & \text{Vasopressin} & \text{I} & \text{Duodenum} \\ \hline \text{B} & \text{Aldosterone} & \text{II} & \text{Pituitary gland} \\ \hline \text{C} & \text{Secretin} & \text{III} & \text{Adrenal gland} \\ \hline \text{D} & \text{Calcitonin} & \text{IV} & \text{Thyroid gland} \\ \hline & & \text{V} & \text{Thymus gland} \\ \hline \end{array} \]

• A. A--II, B--III, C--I, D--IV
• B. A--II, B--III, C--V, D--I
• C. A--I, B--IV, C--V, D--III
• D. A--II, B--I, C--III, D--IV

Hint:

Important hormone sources: \[ \boxed{ \begin{aligned} &\text{ADH (Vasopressin)} &&\rightarrow \text{Pituitary} &\text{Aldosterone} &&\rightarrow \text{Adrenal cortex} &\text{Secretin} &&\rightarrow \text{Duodenum} &\text{Calcitonin} &&\rightarrow \text{Thyroid} \end{aligned} } \]

Answer 1

The Correct Option is A

Step 1: Recall the source of each hormone. \[ \begin{aligned} \text{Vasopressin (ADH)} &\rightarrow \text{Pituitary gland} \text{Aldosterone} &\rightarrow \text{Adrenal cortex} \text{Secretin} &\rightarrow \text{Duodenum} \text{Calcitonin} &\rightarrow \text{Thyroid gland} \end{aligned} \]

Step 2: Match the lists. \[ \boxed{ A-II,\qquad B-III,\qquad C-I,\qquad D-IV } \]

Step 3: Choose the correct option. Hence, \[ \boxed{(A)} \] is the correct answer.