Which of the following is the one common feature found in all types of connective tissue despite their variation in different aspects ?

Options

A. Tough collagenous fibres
B. Elasticity and strength
C. Abundant matrix
D. Vascularity

Answer

To solve the question regarding the common feature found in all types of connective tissue, we will analyze each option provided.

### Step-by-Step Solution:

1. **Understanding Connective Tissue**:
- Connective tissues are diverse in structure and function but share certain characteristics. They typically consist of cells scattered within an extracellular matrix.

2. **Analyzing the Options**:
- **Option 1: Tough Collagenous Fibers**:
- While collagen fibers are present in many types of connective tissues, they are not found in all. For example, cartilage has a different composition and does not contain collagen in the same way as dense connective tissue. Thus, this option is incorrect.

- **Option 2: Elasticity and Strength**:
- Elasticity and strength are properties associated with certain connective tissues, like elastic connective tissue. However, not all connective tissues possess both properties uniformly. Therefore, this option is also incorrect.

- **Option 3: Abundant Matrix**:
- All types of connective tissues have an abundant extracellular matrix, which is a defining feature of connective tissues. This matrix can vary in composition and density, but its presence is a common characteristic across all connective tissues. Hence, this option is correct.

- **Option 4: Vascularity**:
- Vascularity varies among connective tissues. For instance, cartilage is avascular, meaning it lacks blood vessels. Therefore, this option is incorrect as well.

3. **Conclusion**:
- After analyzing all the options, the correct answer is **Option 3: Abundant Matrix**, as it is the one common feature found in all types of connective tissue despite their variations.

### Final Answer:
**Option 3: Abundant Matrix**