X and Y are type of diseases. X can spread from an infected person to a healthy person by actual contact between them and can spread from an infected person to healthy person with food, air or water. Y remains confined to the person who develops them and do not spread to others.
Some examples of X are

Options

A. typhoid and goitre
B. small pox and marasmus
C. measles and small pox
D. typhoid and epilepsy

Explanation

To solve the question regarding the examples of disease X, we need to identify the characteristics of diseases X and Y based on the information provided. Here’s a step-by-step breakdown of the solution:

### Step-by-Step Solution

1. **Identify the Types of Diseases**:
- Disease X spreads from an infected person to a healthy person through direct contact, food, air, or water.
- Disease Y remains confined to the individual who develops it and does not spread to others.

2. **Classify the Diseases**:
- Disease X is classified as an **infectious disease** because it can be transmitted between individuals.
- Disease Y is classified as a **non-infectious disease** since it does not spread from person to person.

3. **List Examples of Infectious Diseases**:
- Examples of infectious diseases (X) include:
- **Typhoid**: Caused by the bacterium *Salmonella typhi*, transmitted through contaminated food and water.
- **Smallpox**: A viral disease that spreads through direct contact or contaminated items.
- **Mersus**: A viral infection that spreads through respiratory droplets from coughing and sneezing.

4. **Identify Non-Infectious Diseases**:
- Examples of non-infectious diseases (Y) include:
- **Goitre**: Caused by iodine deficiency.
- **Marasmus**: A condition resulting from nutrient deficiency.
- **Epilepsy**: A neurological disorder that does not spread.

5. **Conclude with the Correct Examples**:
- From the examples provided, **Typhoid** and **Smallpox** are valid examples of disease X (infectious diseases).

### Final Answer:
Some examples of disease X are **Typhoid** and **Smallpox**.