Why did gold-salt traders favor the involvement of the Ghanaians in their trade? A. Ghanaian experts ensured the genuineness of gold traded. B. The Ghanaian army protected traders and their cargo. C. The Ghanaian king helped salt traders get discounts. D. Ghanaians provided free lodging and boarding to traders. E. Ghanaians did not levy taxes on gold-salt traders.

Before they can be published, scientific papers must be peer-reviewed. this means that: a) some other scientific experts read the papers and guarantee that they are true.b) some other scientific experts read the papers and provide quality control by eliminating many mistakes.c) an editor reads the papers, to make sure that all the semicolons are in the correct places.d) everyone in the world is given the opportunity to comment on the papers through a specially maintainedblog.e) government bureaucrats read the papers, to be sure that the papers do not insult the political positions ofthe current officeholders.