Every year, new reports appear concerning the health risks posed by certain substances, such as coffee and sugar. One year an article claimed that coffee is dangerous to one' s health. The next year, another article argued that coffee has some benefits for one' s health. From these contradictory opinions, we see that experts are useless for guiding one' s decisions about one' s health. Which one of the following most accurately describes a flaw in the argument above? ['The argument presumes, without providing justification, that because expert opinion is trustworthy in one case, it must ttherefore be trustworthy in all cases.', "The argument fails to consider that coffee may be harmful to one's health in some respects and beneficial in others.", "The argument takes for granted that coffee is dangerous to one's health.", "The argument presumes, without providing warrant, that one always wants expert guidance in making decisions about one's health."]