Mr. Zoellick is trying to establish a good relationship with Mr. Erwin because ______.
A.
Mr. Erwin is organizing a group of, poor and middle-income countries to oppose America.
B.
Mr. Erwin is a very talented and tactful diplomat in the world political circle
C.
Mr. Erwin's possible position in the coming future will be helpful to American interests
D.
Mr. Erwin's relationship with Japanese and European leaders is useful to the U.S.