In the following table of human ABO blood groups, fill up the blanks (i), (ii), (iii) and (iv) from the options given below
`{:(underset("group")("Blood"),underset("on RBCs")("Antigens"),underset("in Plasma")("Antibody"),underset("groups")("Donor")),("A","A","Anti-B","A,O"),("B","B","Anti-A","B,O"),("AB","AB","(ii)","A,B,AB,O"),(O,"(i)","(iii)","(iv)"):}`

Options

A. (a) `{:("(i) (ii) (iii) (iv)"),("Nil Nil Nil O"):}`
B. (b) `{:("(i) (ii) (iii) (iv)"),("Nil Nil Anti-A,B AB"):}`
C. (c) `{:("(i) (ii) (iii) (iv)"),("Nil Anti-A,B Nil O"):}`
D. (d) `{:("(i) (ii) (iii) (iv)"),("Nil Nil Anti-A,B O"):}`

Answer

To fill in the blanks in the given table of human ABO blood groups, we need to analyze each blood group and identify the corresponding antigens on RBCs, antibodies in plasma, and suitable donor groups.

### Step-by-Step Solution:

1. **Identify the first blank (i)**:
- The blood group is O.
- For blood group O, there are no antigens present on the RBCs.
- Therefore, the answer for blank (i) is **NIL** (indicating the absence of antigens).

2. **Identify the second blank (ii)**:
- The blood group is AB.
- For blood group AB, both A and B antigens are present on the RBCs.
- Since individuals with AB blood group do not have antibodies against A or B antigens, the answer for blank (ii) is also **NIL** (indicating the absence of antibodies).

3. **Identify the third blank (iii)**:
- The blood group is O.
- For blood group O, there are no antigens on the RBCs, but the plasma contains both anti-A and anti-B antibodies.
- Therefore, the answer for blank (iii) is **anti-A and anti-B**.

4. **Identify the fourth blank (iv)**:
- The blood group is A.
- Individuals with blood group A can receive blood from A and O groups.
- However, since the question specifically asks for the donor groups for blood group O, the answer for blank (iv) is **O** (as O is the universal donor).

### Final Answers:
- (i) NIL
- (ii) NIL
- (iii) anti-A and anti-B
- (iv) O

### Summary Table:
| Blood Group | Antigens on RBCs | Antibodies in Plasma | Donor Groups |
|-------------|-------------------|----------------------|--------------|
| A | A | Anti-B | A, O |
| B | B | Anti-A | B, O |
| AB | AB | NIL | A, B, AB, O |
| O | NIL | Anti-A, Anti-B | O |