A person without A and B antigens can give blood to

Options

A. Only O
B. Only A and B
C. Only AB
D. A,B,AB and O

Answer

To determine to whom a person without A and B antigens can give blood, we need to analyze the blood group system based on antigens and antibodies.

### Step-by-Step Solution:

1. **Understand Blood Groups**:
- There are four main blood groups: A, B, AB, and O.
- Blood groups are classified based on the presence of specific antigens on the surface of red blood cells.

2. **Identify Antigens and Antibodies**:
- **Group A**: Has A antigens and produces anti-B antibodies.
- **Group B**: Has B antigens and produces anti-A antibodies.
- **Group AB**: Has both A and B antigens and does not produce any antibodies against A or B.
- **Group O**: Has no A or B antigens and produces both anti-A and anti-B antibodies.

3. **Determine the Donor's Blood Group**:
- A person without A and B antigens is classified as blood group O.

4. **Compatibility of Blood Donation**:
- Blood group O is known as the universal donor because it lacks A and B antigens, meaning it will not trigger an immune response in any of the other blood groups.
- Therefore, a person with blood group O can donate blood to:
- Group A (which has anti-B antibodies)
- Group B (which has anti-A antibodies)
- Group AB (which has no antibodies against A or B)
- Group O (which has both anti-A and anti-B antibodies)

5. **Conclusion**:
- A person without A and B antigens (blood group O) can give blood to all blood groups: A, B, AB, and O.

### Final Answer:
A person without A and B antigens can give blood to **A, B, AB, and O**.

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