e an efficient synthesis for the following transformation. - - ansformation above can be performed with some reagent or combination of the reagents listed below. Give the necessary ht(s) in the correct order, as a string of letters (without spaces or punctuation, such as "EBF"). If there is more than one correct on, provide just one answer. B ROOR D HBr G NaOH HCECNa E CH3CHBr H conc. HSO4, heat C 1) RBH; 2) HO2, NaOH HSO4, HO, HgSO4 1 1) LIAIH4; 2) H30*