Identify the sets of diseases in which , A: infections and B : Non-infectious :

Options

A. A: Pneumonia , B: Malaria
B. A: Cancer , B : AIDS
C. A : AIDS , B: Rheumatoid arthritis
D. A : Cancer, B : Malaria

Answer

To solve the question of identifying the sets of diseases where A is infectious and B is non-infectious, we can follow these steps:

### Step 1: Define Infectious and Non-Infectious Diseases
- **Infectious Diseases**: These are diseases that can be transmitted from one person to another, often caused by pathogens like bacteria, viruses, fungi, or parasites.
- **Non-Infectious Diseases**: These diseases cannot be transmitted between individuals. They are often caused by genetic factors, lifestyle choices, or environmental factors.

### Step 2: Analyze Each Option
1. **Option 1: Pneumonia and Malaria, Cancer, and AIDS**
- Pneumonia: Infectious (can be spread via respiratory droplets).
- Malaria: Infectious (spread by mosquitoes, not directly person-to-person).
- Cancer: Non-infectious.
- AIDS: Infectious (caused by HIV).

**Conclusion**: This option has both infectious and non-infectious diseases, but does not fit the criteria.

2. **Option 2: AIDS, Rheumatoid Arthritis, Cancer, and Malaria**
- AIDS: Infectious.
- Rheumatoid Arthritis: Non-infectious.
- Cancer: Non-infectious.
- Malaria: Infectious.

**Conclusion**: This option has both infectious and non-infectious diseases, but does not fit the criteria.

3. **Option 3: AIDS, Non-infectious diseases (Rheumatoid Arthritis, Cancer)**
- AIDS: Infectious.
- Rheumatoid Arthritis: Non-infectious.
- Cancer: Non-infectious.

**Conclusion**: This option correctly identifies AIDS as infectious and includes only non-infectious diseases.

4. **Option 4: Cancer and Malaria**
- Cancer: Non-infectious.
- Malaria: Infectious.

**Conclusion**: This option has both infectious and non-infectious diseases, but does not fit the criteria.

### Step 3: Identify the Correct Set
From the analysis, **Option 3** is the correct set where A is infectious (AIDS) and B is non-infectious (Rheumatoid Arthritis and Cancer).

### Final Answer
The correct answer is **Option 3: AIDS (Infectious) and Rheumatoid Arthritis, Cancer (Non-infectious)**.

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