Propose an efficient synthesis for the following transformation: OH The transformation above can be performed with some reagent or combination of the reagents listed below. Give the necessary reagent(s) in the correct order, as a string of letters (without spaces or punctuation, such as "EBF"). If there is more than one correct solution, provide just one answer. A B D HBr t-BuOK H2, Lindlar's cat. 1) R_BH: 2) H202, NaOH G H E F NaOH 1) O3; 2) DMS TSCI.PY H2SO4 H20, HgSO4 K DMP or PCC HBr. ROOR 1) LiAlH.: 2) H30 1) MeMgBr: 2) H30