Stiffling is related to

Options

A. Sericulture
B. Lac culture
C. Fishery
D. Apiculture.

Answer

### Step-by-Step Solution:

1. **Understanding Stifling**: Stifling is a treatment applied to silk cocoons. It is important to understand what this treatment entails and its purpose.

2. **Purpose of Stifling**: The primary purpose of stifling is to kill the pupae inside the silk cocoons. This prevents the emergence of moths, which would otherwise damage the silk.

3. **Methods of Stifling**: The stifling treatment involves exposing the silk cocoons to various aggressive methods, such as:
- **Sun Exposure**: Leaving the cocoons in sunlight.
- **Hot Steam**: Using steam from boiling water.
- **Hot Air**: Exposing the cocoons to hot air for extended periods (hours or even days).

4. **Relation to Sericulture**: Since stifling is a treatment for silk cocoons, it directly relates to sericulture, which is the practice of rearing silkworms for silk production.

5. **Analyzing Other Options**:
- **Lac Culture**: This involves the cultivation of lac insects for resin production.
- **Fishery**: This pertains to the raising or harvesting of fish and aquatic life.
- **Apiculture**: This is the rearing of honey bees for honey and other bee products.

6. **Conclusion**: Given that stifling is specifically related to silk cocoons and their treatment, the correct answer is **sericulture**.

### Final Answer:
Stifling is related to **sericulture**.