Explanation:
The author means that even though Japan has a larger trading system (I assume that is what it's referring to) it does not exactly fit the same terms as a usual trading system would.
He was important because he was the first European to reach India and he established a route to India
The correct answer among all the other choices is D. IQ tests. This among all the data sets could most likely be normally distributed. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.
