Among the noninfectious diseases, which of the following is most common fatal diseases of human beings?

Options

A. AIDS
B. Cancer
C. Cystic fibrosis
D. Cholera

Explanation

To determine the most common fatal non-infectious disease among the given options, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Non-Infectious Diseases**: Non-infectious diseases are those that cannot be transmitted from one person to another. They are not caused by pathogens like bacteria or viruses.

2. **Evaluate the Options**:
- **AIDS**: This is an infectious disease caused by the HIV virus. It can be transmitted through sexual contact, blood transfusions, and from mother to child. Therefore, it is not a non-infectious disease.
- **Cancer**: This refers to a group of diseases characterized by uncontrolled cell division. Cancer can lead to the formation of tumors and can be fatal. It is considered a non-infectious disease.
- **Cystic Fibrosis**: This is a genetic disorder that affects the lungs and digestive system. It is also a non-infectious disease but is not as common as cancer in terms of fatality.
- **Cholera**: This is an infectious disease caused by the bacterium Vibrio cholerae, which spreads through contaminated food and water. Thus, it is not a non-infectious disease.

3. **Identify the Most Common Fatal Non-Infectious Disease**: Among the options, cancer is the only non-infectious disease listed and is known to be one of the most common fatal diseases affecting humans.

4. **Conclusion**: The most common fatal non-infectious disease among the options provided is **Cancer**.