Match the columns I and II, and choose the correct combination from the options given.
`{:(,"Column I",,"Column II"),(i.,"Coconut",a.,"Monoecious"),(ii.,"Papaya",b.,"Dioecious"),(iii.,"Tapeworm",,),(iv.,"Earthworm",,):}`

Options

A. a-I, b-ii, a-iii, b-iv
B. b-I, a-ii, b-iii, a-iv
C. a-I, b-ii, a-iii, a-iv
D. a-1, b-2, c-3, d-4

Answer

To solve the matching question between Column I and Column II, we need to analyze each organism listed in Column I and determine whether they are monoecious or dioecious.

### Step-by-Step Solution:

1. **Coconut**:
- The coconut tree has both male and female flowers on the same tree. Therefore, it is classified as **monoecious**.
- Match: Coconut → a. Monoecious

2. **Papaya**:
- Papaya plants have separate male and female trees. Male trees produce only male flowers, and female trees produce only female flowers. Thus, papaya is classified as **dioecious**.
- Match: Papaya → b. Dioecious

3. **Tapeworm**:
- Tapeworms are hermaphroditic, meaning they possess both male and female reproductive organs within the same individual. Therefore, they are classified as **monoecious**.
- Match: Tapeworm → a. Monoecious

4. **Earthworm**:
- Earthworms also have both male and female reproductive organs in the same individual, making them **monoecious**.
- Match: Earthworm → a. Monoecious

### Final Matching:
- Coconut → a. Monoecious
- Papaya → b. Dioecious
- Tapeworm → a. Monoecious
- Earthworm → a. Monoecious

### Correct Combination:
The correct combination from the options given is:
- (i) Coconut - a. Monoecious
- (ii) Papaya - b. Dioecious
- (iii) Tapeworm - a. Monoecious
- (iv) Earthworm - a. Monoecious

Thus, the answer is **Option C**.