Farmer Ben knows that feeding a grain supplement to his cows will produce more milk according to the following schedule: Total Pounds of Supplement Used. Total Extra Pounds of Milk 6 10 13 14 15 15.5 3 4 5 6 Ignoring all other issues, how many pounds of grain supplement should Farmer Ben feed his cows if the price of milk is $0.20 per pound and the price of grain supplement is $1.30 per pound? 0 1 3 2 6