问题详情

The author mentions tulip growing in New Netherland. Pennsylvania. and Michigan in order to illustrate how
A．imported tulips were considered more valuable than locally grown tulips
B．tulips were commonly passect as gifts from one family to another
C．tulips grew progressively more popular in North America
D．attitudes toward tulips varied from one location to another请帮忙给出正确答案和分析，谢谢！