Cotton fibres are

Options

A. bark fibres
B. pholem fibres
C. pericycle fibres
D. epidermal fibres

Answer

**Step-by-Step Solution:**

1. **Understanding Cotton Fibers**: Cotton fibers are the natural fibers obtained from the cotton plant. They are primarily found on the cotton bolls, which are the fruit of the cotton plant.

2. **Location of Cotton Fibers**: These fibers are not part of the fruit itself but are actually outgrowths of the epidermis of the cotton plant. The cotton boll is the structure that contains the fibers.

3. **Formation of Cotton Fibers**: The cotton fibers are formed from the elongation of the epidermal layer of the cotton plant. This elongation occurs as the plant matures, leading to the development of the fluffy structure we associate with cotton.

4. **Classification of Cotton Fibers**: Cotton fibers are classified as epidermal fibers because they originate from the epidermis of the plant. This means they are specialized structures that serve the purpose of protecting the seeds and aiding in their dispersal.

5. **Conclusion**: Therefore, cotton fibers are epidermal fibers that grow on the cotton bolls of the cotton plant.

**Final Answer**: Cotton fibers are epidermal fibers.

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