Corey deposits $1,000 in a savings account that pays an annual interest rate of 5 percent. Over the course of ayear, the inflation rate is 1.7 percent. At the end of the year, Corey hasa. $17 more in his account, and his purchasing power has increased by $10.b. $30 more in his account, and his purchasing power has increased by $50. c.$40 more in his account, and his purchasing power has increased by $33. d. $50 more in his account, and his purchasing power has increased by $33.