Which of the follwing are the causes of indigestion?

Options

A. Anxiety
B. Food poisoning
C. Over eating
D. All of these

Explanation

### Step-by-Step Solution:

1. **Understanding Indigestion**: Indigestion refers to the discomfort or difficulty in digesting food. It can manifest as bloating, stomach pain, or regurgitation.

2. **Identifying Causes**: The question asks for the causes of indigestion. We need to consider various factors that can lead to improper digestion.

3. **Analyzing Each Cause**:
- **Anxiety**: This can interfere with the digestive process. Anxiety affects the mental state, which in turn can disrupt hormone release and synthesis that are crucial for digestion.
- **Food Poisoning**: Consuming spoiled or contaminated food can lead to food poisoning, which disrupts normal digestive processes.
- **Overeating**: Eating too much food can overwhelm the digestive system, leading to discomfort and indigestion.

4. **Conclusion**: All three factors—anxiety, food poisoning, and overeating—are valid causes of indigestion. Therefore, the correct answer includes all these options.

5. **Final Answer**: The correct choice is that all three options (anxiety, food poisoning, and overeating) are causes of indigestion.