3. A small business just leased a new presentation equipment and a color laser printer for three years. The service contract for the computer offers unlimited repairs for a fee of $100 a year plus a $25 service charge for each repair needed. The company's research indicates that during a given year 86% of these computers need no repairs, 9% need to be repaired once, 4% twice, 1% three times, and none required more than three repairs. The standard deviation of the company's annual expense with the service contract for the presentation equipment is A. $105. B. $10.25. C. $187.42. D. $13.69. E. $2.75