The end of long bones are connected to each other by

Options

A. Muscles
B. Tendons
C. Ligaments
D. Cartilage

Explanation

### Step-by-Step Solution:

1. **Understanding Bone Connections**: The question asks about how the ends of long bones are connected to each other. In the human body, bones are connected at joints.

2. **Identifying Types of Connective Tissues**: There are different types of connective tissues that play roles in connecting bones and muscles:
- **Ligaments**: Connect bone to bone.
- **Tendons**: Connect muscle to bone.
- **Cartilage**: Provides cushioning between bones at joints.

3. **Focusing on the Question**: Since the question specifically asks about the connection between long bones, we need to identify which connective tissue is responsible for this.

4. **Choosing the Correct Answer**: The correct answer is **ligaments**. Ligaments are elastic tissues that connect one bone to another at the joints, allowing for movement while providing stability.

5. **Final Answer**: Therefore, the ends of long bones are connected to each other by **ligaments**.