3. What compound is formed when 2,2-dimethyloxirane is treated with ethanol containing a trace of HCl? (A)2-ethoxy-2-methyl-1 -propanol(B)1 -ethoxy-2-methyl-2-propanol (C) 2-ethoxy-2-methyl-2-propanol(D)2-ethoxy-1 -butanol (E)1 -ethoxy-2-butanol