Stridulatory organs of grasshopper are

Options

A. Wings
B. Legs
C. Hing-legs and wings
D. Fore-legs and fore-wings.

Answer

### Step-by-Step Solution:

1. **Understanding Stridulatory Organs**:
- Stridulatory organs are specialized structures that produce sound when rubbed together. This sound production is often used for communication, especially during mating rituals.

2. **Identifying the Organs in Grasshoppers**:
- In grasshoppers, the primary stridulatory organs are the hind legs and the wings. The hind legs can rub against the wings to create sound.

3. **Function of Sound Production**:
- The sound produced by these organs is primarily used for attracting mates. Male grasshoppers often produce these sounds to signal their presence to females.

4. **Evaluating the Options**:
- Option 1: Wings - While wings are involved in sound production, they are not the only organ.
- Option 2: Legs - The hind legs are indeed a stridulatory organ.
- Option 3: Legs and Wings - This option correctly identifies both organs involved in sound production.

5. **Conclusion**:
- The correct answer is option 3: Legs and Wings, as both are stridulatory organs in grasshoppers.