Which series of reactions would bring about the following transformation? View Available Hint(s)for Part A 1. H+, HOCH2CH2OH 2. Mg, THF 3. 2,2-dimethyloxirane 4. H3O+1. Mg, THF 2. acetone 3. H3O+1. H+, acetone 2. Mg, THF 3. acetone 4. H3O+1. H+, acetone 2. Mg, THF 3. 2,2-dimethyloxirane 4. H3O+