Sue Hicks was an accountant in 1951 and earned $17,000 that year. Her son is an accountant too and he earned $250,000 this year. Suppose the price index was 15.5 in 1951 and 21.1 in the current year. In real terms, Sue's income amounts to about what percentage of her son's income?
O 14.7 percent
O 1080.3 percent
O 9.3 percent
O 1.4 percent