问题详情

The passage mentions which of the following as a problem associated with the importation of tulips into North America？
A．They were no longer fashionable by the time they arrived.
B．They often failed to survive the journey.
C．Orders often took six months or longer to fill.
D．Settlers knew little about how to cultivate them.请帮忙给出正确答案和分析，谢谢！