Which One of the Following Best Supports the Argument That

Which one of the following best supports the argument that ethnocentricity should be avoided in business relationships with other countries?

A) Managers often need time to learn the traits and work habits of other cultures.
B) Cultural literacy can only be gained through fluency in another country's language.
C) Managers from other cultures understand best how to motivate their own employees.
D) Western management principles have been proven to enhance business productivity.