Assertion: AIDS spreads more rapidly than hepatitis.
Reason: HIV has shorter incubation period than that of HBV.

Options

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

Answer

### Step-by-Step Solution:

1. **Understanding the Assertion**: The assertion states that AIDS spreads more rapidly than hepatitis. To evaluate this, we need to consider the modes of transmission and the infectious nature of both diseases.

2. **Understanding AIDS**: AIDS (Acquired Immunodeficiency Syndrome) is caused by the Human Immunodeficiency Virus (HIV). HIV primarily spreads through body fluids, including sexual contact, blood transfusions, and sharing needles.

3. **Understanding Hepatitis**: Hepatitis, particularly Hepatitis B (HBV), is an inflammation of the liver caused by the Hepatitis B virus. Like HIV, HBV can also spread through body fluids, including sexual contact and blood.

4. **Comparing Transmission Rates**: While both diseases share similar modes of transmission, the assertion that AIDS spreads more rapidly than hepatitis is not accurate. The transmission rates can vary based on various factors, but generally, hepatitis can spread more easily in certain populations.

5. **Understanding the Reason**: The reason states that HIV has a shorter incubation period than HBV. The incubation period is the time between infection and the appearance of symptoms.

6. **Evaluating Incubation Periods**: The incubation period for HIV can range from 9 months to 20 years, whereas the incubation period for HBV is typically between 1.5 to 6 months. Therefore, the assertion that HIV has a shorter incubation period than HBV is also false.

7. **Conclusion**: Since both the assertion and the reason are false, the correct conclusion is that both statements are incorrect.

### Final Answer:
Both the assertion and the reason are false.

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