Although the U.S. has had a longstanding agreement with ___________, after the passage of NAFTA, _________ became the United States’ second largest trading partner.

Although the U.S. has had a longstanding agreement with ___________, after the passage of NAFTA, _________ became the United States’ second largest trading partner.

A.  Canada, Venezuela
 B.  Canada, Mexico
 C.  Mexico, Canada
 D.  Mexico, Venezuela
 E.  Great Britain, Paraguay