What Explains the Fact That Continual Training May Be More

What explains the fact that continual training may be more important in foreign markets than in domestic ones?

A) Foreign markets are slower to adapt to innovative products
B) Cultural distance could result in dilution of core aspects of the strategy
C) Updating of newer technological innovations in the product
D) Lack of technical knowledge among the foreign salespersons
E) Lack of routine contact with the parent company