Which of the following blood groups is a universal recipent in the blood transfusion ?

Options

A. Group AB
B. Group B
C. Group A
D. Group O

Explanation

To determine which blood group is a universal recipient in blood transfusion, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Blood Groups**: There are four main blood groups: A, B, AB, and O. Each blood group is characterized by specific antigens on the surface of red blood cells and corresponding antibodies in the plasma.

2. **Identify Antigens and Antibodies**:
- **Blood Group A**:
- Antigen: A
- Antibody: Anti-B
- **Blood Group B**:
- Antigen: B
- Antibody: Anti-A
- **Blood Group AB**:
- Antigens: A and B
- Antibodies: None
- **Blood Group O**:
- Antigens: None
- Antibodies: Anti-A and Anti-B

3. **Determine the Universal Recipient**: The universal recipient is the blood group that can receive blood from any other group without causing an immune reaction. This is determined by the presence or absence of antibodies:
- Since blood group AB has no antibodies, it can accept blood from groups A, B, AB, and O without any risk of an allergic reaction.

4. **Conclusion**: Therefore, the blood group that is the universal recipient is **AB**.

### Final Answer:
The universal recipient blood group is **AB**.

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