Select the correct statement from the following .
I. Bones support and protect softer tissue and organs
II. Blood is a fluid connective tissue.
III. Cartilage is a type of specialised muscle tissue.
IV. The bone marrow found in some bones is the site of production of leucocytes.

Options

A. I and II
B. I, II, III
C. I, II, III and IV
D. I, II and IV

Answer

To solve the question, we need to evaluate each statement provided and determine which ones are correct.

### Step-by-Step Solution:

1. **Evaluate Statement I: "Bones support and protect softer tissue and organs."**
- **Analysis:** This statement is true. Bones form the skeletal system, which provides structural support and protection for softer tissues and organs. For example, the skull protects the brain.
- **Conclusion:** Statement I is correct.

2. **Evaluate Statement II: "Blood is a fluid connective tissue."**
- **Analysis:** This statement is also true. Blood is classified as a connective tissue because it connects different parts of the body and transports nutrients, gases, and waste products.
- **Conclusion:** Statement II is correct.

3. **Evaluate Statement III: "Cartilage is a type of specialised muscle tissue."**
- **Analysis:** This statement is false. Cartilage is not a type of muscle tissue; it is a type of connective tissue that provides support and flexibility in various parts of the body, such as joints and the nose.
- **Conclusion:** Statement III is incorrect.

4. **Evaluate Statement IV: "The bone marrow found in some bones is the site of production of leucocytes."**
- **Analysis:** This statement is true. Bone marrow is responsible for producing blood cells, including leucocytes (white blood cells), which are crucial for the immune response.
- **Conclusion:** Statement IV is correct.

### Summary of Evaluations:
- Statement I: Correct
- Statement II: Correct
- Statement III: Incorrect
- Statement IV: Correct

### Final Conclusion:
The correct statements are I, II, and IV. Therefore, the correct answer is option 4: "1st, 2nd, and 4th."

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