Match of column A with column B and choose the correct option.
`{:("Column A","Column B"),(A."Porifere",i."Canal system"),(B."Aschelminthes",ii."Water-vascular system"),(C."Annelida",iii."Muscular pharynx"),(D."Arthropoda",iv."Jointed appendages"),(E."Echinodermata",v."Metameres"):}`

Options

A. A-ii, B-iii, C-v, D-iv, E-i
B. A-ii, B-v, C-iii, D-iv, E-i
C. A-i, B-iii, C-v, D-iv, E-ii
D. A-i, B-v, C-iii, D-iv, E-ii

Answer

To solve the matching question between Column A and Column B, we will analyze each item in Column A and find its corresponding match in Column B based on the characteristics of each phylum.

### Step-by-Step Solution:

1. **Identify Porifera**:
- Porifera, commonly known as sponges, have a unique **canal system** (also known as the aquiferous system) that aids in food acquisition, gas exchange, and excretion.
- **Match**: A (Porifera) → i (Canal system)

2. **Identify Echinodermata**:
- Echinoderms, such as starfish, possess a **water-vascular system**, which is a hydraulic system used for locomotion, feeding, and respiration.
- **Match**: E (Echinodermata) → ii (Water-vascular system)

3. **Identify Aschelminthes**:
- Aschelminthes, also known as roundworms, have a **muscular pharynx** that is used for ingesting food and capturing prey.
- **Match**: B (Aschelminthes) → iii (Muscular pharynx)

4. **Identify Arthropoda**:
- Arthropods are characterized by their **jointed appendages**, which allow for flexibility and movement.
- **Match**: D (Arthropoda) → iv (Jointed appendages)

5. **Identify Annelida**:
- Annelids, such as earthworms, exhibit **metameres**, which are segments of their body that repeat homologous structures.
- **Match**: C (Annelida) → v (Metameres)

### Final Matches:
- A → i (Porifera → Canal system)
- B → iii (Aschelminthes → Muscular pharynx)
- C → v (Annelida → Metameres)
- D → iv (Arthropoda → Jointed appendages)
- E → ii (Echinodermata → Water-vascular system)

### Summary of Matches:
- A - i
- B - iii
- C - v
- D - iv
- E - ii