Which Is the Most Accurate Statement

Which is the most accurate statement?

A) Before the 1960s the workers in low-wage nations were no threat to workers in high-wage economies because they had so little capital to work with.
B) Labor has long been much more mobile than capital.
C) In recent years America has become a low-wage country relative to most of the rest of the world.
D) Despite a flood of imported goods,our manufacturing employment is more than double what it was in 1960.