Hello, I'm Beatrix may you please help me? Which source is the most credible for researching the positive effects of the Columbian Exchange?

an article on a wiki website
a magazine published in 1988
a .gov website updated in 2019
a blog by a company that sells a product

When pay is made public, people evaluate how equitable their pay is in light of the pay other people are receiving. the problem in this case is that dwight and guillermo have found out that others are getting paid more than they do for the same work. what are they likely to do under these circumstances