Assertion : Syphilis, gonorrhoea and AIDS are STIs.
Reason : Syphilis, gonorrhoea and AIDS are transmitted through sexual intercourse.

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

**Step-by-Step Solution:**

1. **Understanding the Terms:**
- First, we need to clarify what STIs (Sexually Transmitted Infections) are. STIs are infections that are primarily spread through sexual contact.

2. **Analyzing the Assertion:**
- The assertion states: "Syphilis, gonorrhoea, and AIDS are STIs."
- We need to confirm if each of these diseases is indeed classified as an STI.
- **Syphilis:** This is caused by the bacterium Treponema pallidum and is transmitted through sexual intercourse. Therefore, it is classified as an STI.
- **Gonorrhoea:** This is caused by the bacterium Neisseria gonorrhoeae and is also transmitted through sexual intercourse. Thus, it is an STI.
- **AIDS:** This is caused by the Human Immunodeficiency Virus (HIV) and is transmitted through sexual contact as well. Hence, it is classified as an STI.
- Conclusion: The assertion is true.

3. **Analyzing the Reason:**
- The reason states: "Syphilis, gonorrhoea, and AIDS are transmitted through sexual intercourse."
- We have already established that all three diseases are indeed transmitted through sexual intercourse.
- Conclusion: The reason is also true.

4. **Linking Assertion and Reason:**
- Now we need to determine if the reason correctly explains the assertion.
- The assertion identifies syphilis, gonorrhoea, and AIDS as STIs, while the reason explains that these infections are transmitted through sexual intercourse.
- Since the reason provides a valid explanation for why these infections are classified as STIs, it supports the assertion.

5. **Final Conclusion:**
- Both the assertion and the reason are true, and the reason correctly explains the assertion.
- Therefore, the correct answer is option A: Both assertion and reason are true, and reason is the correct explanation of assertion.

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