At Elsa's 10 year high school reunion her salary was $50,000 and the CPI that year was 80. Now at her 15 year high school reunion, Elsa's income has risen to $80,000 and the CPI is now 150. At her 15 year reunion, can Elsa brag that her real income has risen since she saw her classmates ve years ago? 0 Yes, Elsa's real income rose during that 5 year period. 0 It is impossible to determine what happened to Elsa's real income. 0 No, Elsa's real income stayed the same during that 5 year period. 0 No, Elsa's real income fell during that 5 year period