For an essay about threats to our health, which of the following sources are most credible?
a. daniels, edgar. heart benefits of high-fructose corn syrup. tallahassee: candy makers of america press, 2013. print.
b. chang, walter. healing your health problems through herbs. littledale, self-published, 2007. print.
c. washer, sarah. maximize your health: a guide to getting better. new york: harper sisters, 1968. print.
d. singer, ming. preventing heart disease. boston, ma: mcmaster brothers, 2013. print. hreats to our health, which of the following sources would be most credible?

D. Singer, Ming. Preventing Heart Disease. Boston, MA: McMaster Brothers, 2013. Print.

Out of these options, the one that seems most credible is the last one. The first option was published by "Candy Makers of America Press" in praise of high-fructose corn syrup, which is universally accepted to be bad for health. The second option was self-published, which means that it was not peer-reviewed and it is more likely to have errors. The third option discusses ways to improve your health, not threats to your health. However, the fourth option discusses a threat to health as well as being published by a credible source.

an argumentative essay presents objectively a topic and its main characteristics. besides, it states all this information and facts by giving authentic and substantiated proof to the audience. by contrast, a persuasive text purpose is to convince the audience about some facts by presenting them according to his/her emotions and feelings. the main purpose of a persuasive text is to convince the audience to agree with the author´s opinion. on the other hand, in the argumentative essay, the author leads the writer to recognize his/her point of view as the correct one.