Assertion : Pituitary gland releases a hormone which is helpful in child birth.
Reason : Pituitary gland releases vasopressin and anti diuretic hormone which helps in child birth.

Options

A. If both assertion and reason are true and reason is the correct explanation of assertion.
B. If both assertion and reason are true but reason is not the correct explanation of assertion.
C. If assertion is true but reason is false.
D. If both assertion and reason are false.

Answer

To solve the question regarding the assertion and reason about the pituitary gland, we will analyze both statements step by step.

### Step 1: Analyze the Assertion
- **Assertion**: "Pituitary gland releases a hormone which is helpful in childbirth."
- The pituitary gland, specifically the posterior lobe (neurohypophysis), releases oxytocin, which is indeed helpful in childbirth. Oxytocin stimulates uterine contractions during labor, facilitating childbirth.

### Step 2: Analyze the Reason
- **Reason**: "Pituitary gland releases vasopressin and anti-diuretic hormone which help in childbirth."
- Vasopressin, also known as the anti-diuretic hormone (ADH), is released by the posterior pituitary gland. However, its primary function is to regulate water balance in the body by promoting water reabsorption in the kidneys. It does not play a role in childbirth.

### Step 3: Determine the Truth Value of Each Statement
- The assertion is **true** because the pituitary gland does release oxytocin, which is crucial for childbirth.
- The reason is **false** because vasopressin (ADH) does not assist in childbirth; its function is related to water balance.

### Conclusion
- The assertion is true, but the reason is false. Therefore, the correct answer is that the assertion is true, and the reason is false.