Discussion
'Y' is a man-made fibre obtained from a natural source. What could be 'Y' ?
Answer: A
'Y' could be rayon.
Rayon is made from cellulose obtained from wood pulp, a natural source, which is chemically treated to make a fibre. That is why it is often called artificial silk and described as a man-made fibre from a natural source.
Nylon and acrylic are fully synthetic fibres made from petrochemicals, so their source is not natural. Jute is a natural plant fibre used as it is, not a man-made fibre.
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