Which of the following reagent(s) used for the conversion?

Which of the following reagent(s) used for the conversion?
  1. glycol/$\mathrm{LiAlH}_4 / \mathrm{H}_3 \mathrm{O}^{+}$
  2. glycol/ $\mathrm{NaH} / \mathrm{H}_3 \mathrm{O}^{+}$
  3. $\mathrm{LiAlH}_4$
  4. $\mathrm{NaBH}_4$

Asked in: JEE Main 2013 (25 Apr Online)

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