Which carbon atoms of fructose are bonded together through oxygen forming fructofuranose?

Which carbon atoms of fructose are bonded together through oxygen forming fructofuranose?
  1. 2 and 5
  2. 1 and 6
  3. 1 and 5
  4. 2 and 6

Asked in: MHT CET 2022 (05 Aug Shift 2)

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