$ Flower of Rafflesia is largest sized.
! Large flowers have wind pollination

Options

A. If both As and R are correct and R is correct explanation of As
B. If both As and R are correct but R is not correct explanation of As
C. If As is correct, R is wrong
D. If both As and R are wrong.

Answer

**Step-by-Step Solution:**

1. **Understanding the Assertion:**
- The assertion states that the flower of Rafflesia is the largest in size.
- This is true as Rafflesia arnoldii, known for its large bloom, can grow up to three feet in diameter and weigh around 15 pounds.

2. **Understanding the Reason:**
- The reason provided states that large flowers have wind pollination.
- This is incorrect. Typically, wind-pollinated plants have small flowers that are not showy, as they rely on wind to transfer pollen rather than attracting pollinators.

3. **Analyzing the Pollination of Rafflesia:**
- Rafflesia flowers are not wind-pollinated. They are pollinated by specific insects, particularly carrion flies, which are attracted to the flower's odor that resembles rotting flesh.

4. **Conclusion:**
- Since the assertion is true and the reason is false, the correct answer to the question is that the assertion is true, but the reason is incorrect.

**Final Answer:**
- The assertion is true, and the reason is false. Therefore, the correct option is option number three.

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