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 will analyze each of the provided statements to determine which one is correct.

### Step-by-Step Solution:

1. **Analyzing Option A:**
- The statement claims that blood cells secrete fibers of the structural protein called fibrin.
- **Evaluation:** This statement is incorrect. Blood cells, specifically platelets, secrete fibrinogen, which is then converted to fibrin during the clotting process. Therefore, this statement is not accurate.

2. **Analyzing Option B:**
- The statement claims that basophils are non-phagocytic and do not engulf bacteria but degranulate to perform their immune function.
- **Evaluation:** This statement is correct. Basophils are a type of white blood cell that do not engage in phagocytosis. Instead, they release histamine and other chemicals from their granules to mediate allergic reactions and inflammation.

3. **Analyzing Option C:**
- The statement claims that osteocytes are present in the fluid-filled cavity called lamellae.
- **Evaluation:** This statement is incorrect. Osteocytes are located in small cavities called lacunae, which are found within the bone matrix, not in lamellae.

4. **Analyzing Option D:**
- The statement claims that striated muscle fibers are branched.
- **Evaluation:** This statement is incorrect. Striated muscle fibers, such as skeletal muscle fibers, are cylindrical and multinucleated, and they are not branched. Only cardiac muscle fibers are branched.

### Conclusion:
After evaluating all the options, the correct option is **Option B**, which states that basophils are non-phagocytic and perform their immune function by degranulating.