Which of the following can make you ill if you come in contact with an infected person?

Options

A. High blood pressure
B. Genetic abnormalities
C. Sneezing
D. Blood cancer

Explanation

### Step-by-Step Solution

1. **Understanding Infectious Diseases**:
- Infectious diseases are illnesses caused by pathogens (like bacteria, viruses, fungi) that can be transmitted from one person to another through contact.

2. **Analyzing the Options**:
- The options provided are:
- A) High blood pressure
- B) Genetic abnormalities
- C) Sneezing
- D) Blood cancer

3. **Evaluating Each Option**:
- **High Blood Pressure**:
- This condition is related to the cardiovascular system and is not caused by an infectious agent. It cannot be transmitted from one person to another.
- **Conclusion**: Non-infectious disease.

- **Genetic Abnormalities**:
- These are inherited conditions that occur at the time of gamete fusion and are not caused by infections. They are present before birth and cannot be transmitted through contact.
- **Conclusion**: Non-infectious disease.

- **Sneezing**:
- Sneezing can be a symptom of infectious diseases like the common cold or flu. When an infected person sneezes, they release droplets that can carry pathogens, potentially infecting others.
- **Conclusion**: Infectious disease.

- **Blood Cancer**:
- Cancer, including blood cancer, is characterized by the uncontrolled growth of cells and is not caused by infections. It is not transmissible through contact.
- **Conclusion**: Non-infectious disease.

4. **Final Answer**:
- Among the options, only **C) Sneezing** is associated with infectious diseases that can make you ill if you come in contact with an infected person.