Dec’10 futures bottomed at the end of June at $3.44 per bushel. At that time, you could purchase a 350 Dec corn call for 22 cents, or a 450 call for 5 cents per bushel. By mid-September, Dec’10 corn was trading at $5.08, more than $1.50 higher. Which option increased more in value; the 350 or 450 December call?

a.   350

b.   450