Why does the author open his article with this pie chart? Responses A to provide color and contrast for what else would be a very dry and boring articleto provide color and contrast for what else would be a very dry and boring article B to show that vaccines can be very helpful but are not essential for the good health of a communityto show that vaccines can be very helpful but are not essential for the good health of a community C to flood the reader with information in the hopes that article will somehow have a sense of authorityto flood the reader with information in the hopes that article will somehow have a sense of authority D to persuade readers to vaccinate by overwhelming them with a long list of vaccine-preventable diseasesto persuade readers to vaccinate by overwhelming them with a long list of vaccine-preventable diseases