You are the risk professional of your enterprise. You need to calculate potential revenue loss if a certain risks occurs. Your enterprise has an electronic (e-commerce) web site that is producing US $1 million of revenue each day, then if a denial of service (DoS) attack occurs that lasts half a day creates how much loss? \ A. US $250,000 loss B. US $500,000 loss C. US $1 million loss • D. US $100,000 loss