Propose an efficient synthesis for the following transformation: 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 C D tBuOK NaOH 1) BH3THF;2)H2O2,NaOH NaOMe H2. Lindlar's cat. 1) LiAlH4;2)H3O+ G H TsCl,py Br2,hv 1H2SO4,H2O,HgSO4JPBr3KdiluteH2SO4 L 1) MeMgBr; 2) H3O+