Peter Minuit bought Manhattan island from the Lenape tribe in 1626 for $24 worth of beads and trinkets. The 2014 estimate of the value of the land on this island was $1.4 trillion (1 trillion = 1012). What rate of return would the tribe have received if they had retained title to the island rather than selling it for $24? The rate of return is close to: Select one: a. 4.3% b. 6.4% c. 7.8% d. 5.6%