Skeletal muscles come under the board category of muscle tissue for the animals. How many of the following statements are correct related to the skeletal muscles.
I. They are closely attached to bones.
II. These are involuntary in the activity.
III. They are typically found within the blood vessel
IV. Several muscle fibers are enclosed by a sheath of connective tissue.

Options

A. 3
B. 2
C. 4
D. 1

Answer

To solve the question regarding the correctness of the statements related to skeletal muscles, we will analyze each statement one by one.

### Step-by-Step Solution:

1. **Statement I: They are closely attached to bones.**
- **Analysis:** Skeletal muscles are indeed attached to bones via tendons. This statement is correct.
- **Conclusion:** Statement I is correct.

2. **Statement II: These are involuntary in activity.**
- **Analysis:** Skeletal muscles are classified as voluntary muscles, meaning they are under conscious control. This statement is incorrect.
- **Conclusion:** Statement II is incorrect.

3. **Statement III: They are typically found within blood vessels.**
- **Analysis:** This statement is misleading. Skeletal muscles are not found within blood vessels; however, they do have a rich blood supply. The wording suggests they are inside blood vessels, which is incorrect.
- **Conclusion:** Statement III is incorrect.

4. **Statement IV: Several muscle fibers are enclosed by a sheath of connective tissue.**
- **Analysis:** Each muscle fiber is surrounded by a connective tissue sheath called the endomysium. However, several muscle fibers together are enclosed by a connective tissue sheath called the perimysium. The statement is misleading as it implies a generalization that can be interpreted as incorrect.
- **Conclusion:** Statement IV is incorrect.

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

### Final Answer:
Only **1 statement** (Statement I) is correct regarding skeletal muscles.