Currently the IVY League Colleges cost about $ 50,000 per year for the 4 year college education, while the WSU Costs only about $ 15,000. . These costs are going up each year by about 4.5%. In 18 years time, the difference between the Ivy League and WSU would be approximately:
a. $ 77,300
b. $ 35,000
c. $63,350
d. $940,000