match the following columns and select the correct option Column-I Column-II (a) Gregarious, polyphagous pest (i) Asterias (b) Adult with radial symmetry and larva with bilateral symmetry (ii) Scorpion (c) Book lungs (iii) Ctenoplana (d) Bioluminescence (iv) Locusta

Options

A. a(ii), b(iii), c(iv), d(i)
B. a(iii), b(iv), c(ii), d(i)
C. a(iii), b(ii), c(iv), d(i)
D. a(iv), b(i), c(ii), d(iii)

Answer

To solve the matching question, we will analyze each item in Column-I and find the corresponding item in Column-II.

### Step-by-Step Solution:

1. **Identify the first item in Column-I:**
- (a) **Gregarious, polyphagous pest**: This refers to a pest that is social (gregarious) and feeds on many different types of food (polyphagous). The correct match is **(iv) Locusta**, which is the scientific name for the locust, a well-known gregarious and polyphagous pest.

2. **Identify the second item in Column-I:**
- (b) **Adult with radial symmetry and larva with bilateral symmetry**: This characteristic is typical of organisms in the phylum Echinodermata, such as starfish. The correct match is **(i) Asterias**, which is the scientific name for the starfish.

3. **Identify the third item in Column-I:**
- (c) **Book lungs**: Book lungs are respiratory structures found in certain arachnids. The correct match is **(ii) Scorpion**, as scorpions possess book lungs for respiration.

4. **Identify the fourth item in Column-I:**
- (d) **Bioluminescence**: This is the ability of certain organisms to produce light. The correct match is **(iii) Ctenoplana**, which is known for its bioluminescent properties.

### Final Matching:
- (a) Gregarious, polyphagous pest → (iv) Locusta
- (b) Adult with radial symmetry and larva with bilateral symmetry → (i) Asterias
- (c) Book lungs → (ii) Scorpion
- (d) Bioluminescence → (iii) Ctenoplana

### Conclusion:
The correct matches are:
- (a) → (iv)
- (b) → (i)
- (c) → (ii)
- (d) → (iii)

The correct option is **Option 4**.