Read the given statements and select the correct ones.
(i) Hemp fibres are obtained from the leaves of its plant.
(ii) Examples of bast fibres are jute, hemp and sisal.
(iii) Silk cotton is obtained from silky hair that surround the seeds of kapok trees.
(iv) Wool on burning gives the smell of burning hair.

Options

A. (i), (iii) and (iv) only
B. (ii), (iii) and (iv) only
C. (iii) and (iv) only
D. (i), (ii) and (iii) only

Explanation

To determine which statements are correct, let's analyze each statement one by one:

1. **Statement (i)**: "Hemp fibres are obtained from the leaves of its plant."
- **Analysis**: This statement is incorrect. Hemp fibers are actually obtained from the stem of the hemp plant, not from its leaves.

2. **Statement (ii)**: "Examples of bast fibres are jute, hemp and sisal."
- **Analysis**: This statement is also incorrect. While jute is a bast fiber, hemp is not classified as a bast fiber; it is a type of fiber obtained from the stem. Additionally, sisal is not a bast fiber but rather a leaf fiber. The correct examples of bast fibers include jute and flax.

3. **Statement (iii)**: "Silk cotton is obtained from silky hair that surrounds the seeds of kapok trees."
- **Analysis**: This statement is correct. Silk cotton, also known as kapok, is indeed obtained from the silky fibers that surround the seeds of kapok trees.

4. **Statement (iv)**: "Wool on burning gives the smell of burning hair."
- **Analysis**: This statement is also correct. When wool is burned, it emits a smell similar to that of burning hair, due to its protein structure.

**Conclusion**: The correct statements are (iii) and (iv).

### Final Answer:
The correct statements are:
- (iii) Silk cotton is obtained from silky hair that surrounds the seeds of kapok trees.
- (iv) Wool on burning gives the smell of burning hair.