Read the following statement and choose the CORRECT option.

Options

A. Blood cells secrete fibers of structural protein called collagen
B. Basophils are non-phagocytic
C. Osteocytes are present in fluid filled cavity called Lamellae
D. Striated muscle fibers are branched

Answer

To solve the question, we need to analyze each of the provided statements and determine which one is correct.

### Step-by-Step Solution:

1. **Examine the First Option**:
- **Statement**: Blood cells secrete fibers of structural protein called collagen.
- **Analysis**: Blood cells (RBCs, WBCs, and platelets) do not secrete collagen. Collagen is primarily produced by fibroblasts in connective tissues, not by blood cells. Therefore, this statement is incorrect.

2. **Examine the Second Option**:
- **Statement**: Basophils are non-phagocytic.
- **Analysis**: Basophils are a type of white blood cell that play a role in allergic reactions and inflammation. They do not engage in phagocytosis, which is the process of engulfing foreign particles. Instead, they release substances like histamine. This statement is correct.

3. **Examine the Third Option**:
- **Statement**: Osteocytes are present in fluid-filled cavities called lamellae.
- **Analysis**: Osteocytes are mature bone cells that reside in small cavities called lacunae, not lamellae. Lamellae are the concentric rings of bone matrix. Therefore, this statement is incorrect.

4. **Examine the Fourth Option**:
- **Statement**: Striated muscle fibers are branched.
- **Analysis**: Striated muscles, specifically skeletal muscles, are long, cylindrical, and unbranched. Cardiac muscle fibers are branched, but the term "striated muscle fibers" generally refers to skeletal muscle. Therefore, this statement is also incorrect.

### Conclusion:
The only correct statement among the options provided is that **basophils are non-phagocytic**.

### Final Answer:
The correct option is: **Basophils are non-phagocytic.**

---