Below is an incomplete reaction scheme. Complete the structures of compounds B and C, and write in the missing reagents in Steps 1, 2 and 4. BnO, ..OTBS .OTBS HO- "HO. ỐCH3 ÕCH3 Bu4N*F", THF -CH3 `CH3 B.

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A: Note:- according to our guidelines we are supposed to answer only one question