In? 2009, the world suffered a global economic crisis that resulted in dramatic decreases in worldwide exports.? today, we see increasing growth in world trade with world exports of merchandise increasing from? $12 trillion in 2009 to nearly what amount in? 2012?

a. ?$15 trillion

b. ?$20 trillion

c. ?$18 trillion

d. ?$16 trillion

e. ?$14 trillion