The answer is not "AGFB" or "AGB"

Propose an efficient synthesis for the following transformation: The transformation above can be performed with some regent or combination of the reagents listed below. Give the necessary reagents 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. MCPBA (RCO3H) B. 1) NaSH; 2) H3O+ C. 1) LiAlH4; 2) H3O+ D. Na2Cr2O7,H2SO4,H2O E. KMnO4 F.Br2,hv G. H3O+