Match the following organisms with respective characteristics:
`{:("(a) Pila",,"(i) Flame cells"),("(b) Bombyx",,"(ii) Comb plates"),("(c) Pleurobrachia",,"(iii) Radula"),("(d) Taenia",,"(iv) Malpighian tubules"):}`

Options

A. `{:(,(a),(b),(c),(d)),((1),(iii),(ii),(iv),"(i)"):}`
B. `{:(,(a),(b),(c),(d)),((2),(iii),(ii),(i),"(iv)"):}`
C. `{:(,(a),(b),(c),(d)),((3),(iii),(iv),(ii),"(i)"):}`
D. `{:(,(a),(b),(c),(d)),((4),(ii),(iv),(iii),"(i)"):}`

Answer

To solve the question of matching organisms with their respective characteristics, we will analyze each organism and its corresponding feature step by step.

### Step-by-Step Solution:

1. **Identify Organism (a) Pila:**
- Pila, commonly known as the apple snail, belongs to the phylum Mollusca.
- Mollusca is characterized by having a rasping organ known as the radula.
- **Match:** (a) Pila → (iii) Radula

2. **Identify Organism (b) Bombyx:**
- Bombyx, commonly known as the silkworm, is part of the phylum Arthropoda.
- Arthropods possess Malpighian tubules, which are involved in excretion and osmoregulation.
- **Match:** (b) Bombyx → (iv) Malpighian tubules

3. **Identify Organism (c) Pleurobrachia:**
- Pleurobrachia is a member of the phylum Ctenophora, also known as comb jellies.
- Ctenophores are characterized by having eight rows of comb plates that aid in locomotion.
- **Match:** (c) Pleurobrachia → (ii) Comb plates

4. **Identify Organism (d) Taenia:**
- Taenia, commonly known as the tapeworm, belongs to the phylum Platyhelminthes.
- Platyhelminthes have flame cells (also known as protonephridia) as their excretory organs.
- **Match:** (d) Taenia → (i) Flame cells

### Final Matches:
- (a) Pila → (iii) Radula
- (b) Bombyx → (iv) Malpighian tubules
- (c) Pleurobrachia → (ii) Comb plates
- (d) Taenia → (i) Flame cells

### Conclusion:
The correct matching is:
- (a) Pila → (iii)
- (b) Bombyx → (iv)
- (c) Pleurobrachia → (ii)
- (d) Taenia → (i)

Thus, the correct option is option number three.

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