Josh Rink considers himself a shrewd commodities Investor. Not long ago he bought one July corn contract at $0.64 a bushel and he recently sold it at $0.67 a bushel. How much profit did he make? What was his return on invested capital if he had to put up a $1,780 deposit? Additional Variables; (Commodities and size of contracts) Corn: 5,000 bushels Wheat: 5,000 bushels Coffee: 27,500 lbs. Copper: 25,000 lbs. Cotton: 50,000 lbs. Select one: O a. 8.4% O b. 3.68% O c. 367 98% O d. 0.08% O e. 2 81%