Which one of the following is correct ?

Options

A. Serum = Blood + Fibrinogen
B. Lymph = Plasma + RBC + WBC
C. Blood = Plasma + RBC + WBC+platelets
D. Plasma= Blood-Lymphocytes

Answer

To solve the question "Which one of the following is correct?" regarding the components of blood, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Components of Blood**: Blood is a specialized connective tissue that consists of a fluid matrix called plasma and formed elements, which include red blood cells (RBCs), white blood cells (WBCs), and platelets.

2. **Analyze the Options**: The question provides four options related to the composition of blood, serum, lymph, and plasma. We need to determine which option correctly describes the composition of blood.

3. **Evaluate Each Option**:
- **Option A**: This may refer to plasma alone, which is incorrect because blood includes more than just plasma.
- **Option B**: This might mention lymph or serum, which are not components of blood.
- **Option C**: This states that blood comprises plasma, RBCs, WBCs, and platelets. This is correct since these are indeed the components of blood.
- **Option D**: This may incorrectly combine elements or refer to components that do not belong to blood.

4. **Confirm the Correct Answer**: Based on the analysis, Option C is the correct answer as it accurately lists all the components of blood.

5. **Conclusion**: Therefore, the correct answer to the question is Option C, which states that blood is composed of plasma, RBCs, WBCs, and platelets.