help with 2 and 3 please!

2. Propose a synthesis for converting ethylene oxide into ethylene glycol (antifreeze), shown below. Hint: you can do this in one or two steps! HO OH Although a relatively small percentage of ethylene oxide is used as a fumigant or sterilizing agent, these uses involve a variety of facilities, products, and materials, including medical and dental clinics, research laboratories, hospital equipment, foods, furs, clothing, furniture, books, paper, leather, cosmetics, drugs, railroad cars, beehives, and tobacco. Facilities that manufacture sterile disposable medical supplies, and medical facilities, including hospitals, medical and dental clinics, and private medical and dental surgeries, account for about 95% of the ethylene oxide used as a fumigant or sterilant. In hospitals, ethylene oxide is used as a gaseous sterilant for heat-sensitive medical items, surgical instruments, and other objects and fluids coming in contact with biological tissues." 3. Ethylene oxide is used as a sterilizer. When proteins, DNA, or other molecules that can act as nucleophiles come in contact with it, they react with the ethylene oxide. Why is ethylene oxide so reactive towards nucleophiles