Which of the following is the industrial method of formation of glycol?

• A. Hydroxylation of alkene by Bayer‚Äö√Ñ√∂‚àö√ë‚àö¬•s reagent
• B. From 1,2-dibromoethane
• C. Oxidation of ethylene and using Ag as catalyst
• D. Ethylene treatment with HOCl