What is IUPAC name of following compound?

What is IUPAC name of following compound?
  1. 2,5-Dimethylpentan-1-ol
  2. 1,3-Dimethylpentan-2-ol
  3. 2,5-Dimethylcyclopentanol
  4. 1,3-Dimethylcyclopentan-2-ol

Asked in: MHT CET 2024 (15 May Shift 1)

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