TOEFL Listening: TPO-TOEFL阅读TPO - 68DW4XU40PEE20N0N$

According to paragraph 2, what was the main difficulty Europeans had to overcome in order to develop a new way of trading with the East? A. Europeans were unwilling to invest in large-scale commercial ventures B. Europeans lacked the means for navigating long distances across oceans C. Europeans were unwilling to experiment with new business techniques D. Europeans lacked knowledge about the commercial methods of other peoples