How can propan-2-one be converted into tert- butyl alcohol?

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1. APropan-2-one can be directly converted into tert-butyl alcohol by reducing it with sodium borohydride (NaBH 4
2. BPropan-2-one cannot be directly converted into tert-butyl alcohol by chemical means.
3. CPropan-2-one can be converted into tert-butyl alcohol through a series of oxidation reactions.
4. DPropan-2-one when treated with grignard reagent followed by hydrolysis is converted to tert-butyl alcohol.