The delegation was impressed with the assiduous work ethic of the people. Yet it remains to be seen if such ________ effort can be transferred from the farm to a modern factory.
句意：人们勤勉的职业道德给代表团留下了深刻印象。但是这种勤勉的努力是否可以从农场转移到 现代工厂还得看情况发展。diligent勤勉的；用功的。divergent相异的，分歧的。convergent收敛的；会聚性 的。congenial意气相投的；性格相似的。因此，本题的正确答案为C。