If you were writing an essay on the historical development of genetically-modified vegetables, which research source listed below is most likely to be unbiased, accurate, and credible? a) a book written by a company that produces genetically modified vegetables for profit b) a book written by a freelance author whose previous books were about other scientific issues c) a book written by a woman who believes she got sick from eating genetically modified vegetables d) a book written by a scientist who develop the technology to genetically modify vegetables