Assertion (A): Semen is alkaline in nature.
Reason (R): Semen contains fructose and prostaglandin hormone.

Options

A. Both A and R are true and R is the correct explanation for A.
B. Both A and Rare true, but R is not the correct explanation for A.
C. A is true and R is false.
D. A is false and R is true.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Assertion (A)**: The assertion states that "Semen is alkaline in nature." This means that the pH of semen is greater than 7. This statement is true, as the pH of semen typically ranges from 7.2 to 8.

2. **Understanding the Reason (R)**: The reason given is that "Semen contains fructose and prostaglandin hormone." This statement is also true. Semen does contain fructose, which serves as an energy source for sperm, and prostaglandins, which are involved in various reproductive functions.

3. **Analyzing the Relationship**: While both the assertion and the reason are true, the reason does not adequately explain why semen is alkaline. The alkaline nature of semen is primarily due to the secretion of seminal plasma, which is produced by various glands, including the prostate gland and seminal vesicles. The presence of fructose and prostaglandin does not contribute to the alkaline pH.

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