The United States was unable to maintain its dominance in the production of televisions because:
A.the raw materials necessary to build televisions became scarce in the United States.
B.automated techniques allowed production to be outsourced to countries with less-skilled workers.
C.the highly technical skills necessary to produce televisions are greater in other countries.
D.the product designs evolved too rapidly for engineers in the United States to keep up.
正确答案：automated techniques allowed production to be outsourced to countries with less-skilled workers.
