Cotton fibre is basically a type of

Options

A. Trichome
B. Scale
C. Dried seed coat
D. Non glandular hair

Answer

### Step-by-Step Solution:

1. **Understanding Cotton Fibers**:
- Cotton fibers are hair-like structures that grow from the seed coats of the cotton plant. They are primarily made up of elongated cells that develop from the epidermis of the seed.

2. **Analyzing the Options**:
- **Option 1: Trichome**: Trichomes are hair-like structures that are outgrowths from the epidermis of plants. They can be glandular or non-glandular. However, cotton fibers do not have glands associated with them.
- **Option 2: Scale**: Scales refer to a type of insect that clusters on plants. This option does not relate to cotton fibers, which are not insects.
- **Option 3: Dry Seed Coat**: The dry seed coat serves to protect the seed from physical damage and environmental factors. It does not form fibers.
- **Option 4: Non-Glandular Hair**: This option accurately describes cotton fibers as they are indeed non-glandular hairs that grow from the seed coats.

3. **Conclusion**:
- Based on the analysis, cotton fibers are best categorized as **non-glandular hair**. Therefore, the correct answer to the question is **Option 4**.