Which would be the best way to carry out the following synthesis? (1) KOH, C2H5OH; (2) HA, heat; (3) H3O+, H2O, heat (1) HA, heat; (2) H3O+, H2O, heat (1) (CH3)3COK / (CH3)3COH; (2) BH3:THF, then H2O2, OH- (1) (CH3)3COK / (CH3)3COH; (2) H3O+, then H2O, heat (1) KOH, C2H5OH; (2) BH3:THF, then H2O2, OH-