Why is it important to understand the author's purpose in an informational text a) so you can critique the value of the information
b) so you can judge the author’s motivations
c) so you can learn something about the author’a interests
d) so you can determine which details are more important

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Which is not among the style choices a writer would use, if he or she is trying to establish a formal writing style/

Aids is growing fastest in the poorest countries of africa. these nations don’t have enough doctors, medical labs, or money for medicine. a recent study showed that only a small percentage of hiv-infected children in africa are getting any medical treatment at all. what central idea is emphasized in both sources? the hiv/aids epidemic in africa is serious. the hiv/aids epidemic in south africa is serious. the hiv/aids epidemic among african children is serious. the hiv/aids epidemic among south african children is serious