A person with blood group "A" can (a) donate blood to, and (b) receive blood from,

Options

A. (a) persons with blood group "AB", and (b) persons with any blood group
B. (a) person with blood group "A" or "AB", and (b) "A" or "O" blood groups
C. (a) person with blood group "B" or "AB", and (b) "B" or "O" blood groups
D. (a) person with any blood group, and (b) "O" blood group only

Explanation

To answer the question regarding a person with blood group "A" and their ability to donate and receive blood, we can break it down into two parts:

### Step-by-Step Solution:

1. **Understanding Blood Groups**:
- There are four main blood groups: A, B, AB, and O. Each blood group has specific antigens on the surface of red blood cells.
- Blood group A has A antigens and anti-B antibodies.

2. **Who Can a Person with Blood Group A Donate Blood To?**:
- A person with blood group A can donate blood to individuals with blood group A and AB.
- **Reason**: Blood group A has A antigens, so it can be accepted by blood group A (which has the same antigens) and blood group AB (which has both A and B antigens).

3. **Who Can a Person with Blood Group A Receive Blood From?**:
- A person with blood group A can receive blood from individuals with blood group A and O.
- **Reason**: Blood group A can accept A antigens from group A and can also accept O blood, which has no antigens (universal donor).

### Final Summary:
- **(a)** A person with blood group A can donate blood to: **A and AB**.
- **(b)** A person with blood group A can receive blood from: **A and O**.