Which polymer is classified as a fibre

The same question, asked 3 times: 16 May 2023 S2*, 14 May 2024 S2*, 19 Apr 2025 S2. Every wording below, oldest first.

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Question 1
16 May 2023 S2
53 $Which from following polymers is classified as fibres?$
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Question 2
14 May 2024 S2
69 $Which from following polymers is classified as fibres depending on inter molecular forces?$
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Question 3
19 Apr 2025 S2
57 $Which from following polymers is classified as fiber?$
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