Toyota Learned Many Things from Its Partnership with GM,however American

Toyota learned many things from its partnership with GM,however American managers involved in the venture complained that:

A) Toyota learned many things about the U.S.supply system.
B) Toyota learned about the U.S.transport system.
C) Toyota learned about managing American workers.
D) Toyota did not apply manufacturing expertise at GM plant.
E) Toyota applied its expertise at its Camry plant.