which source is the most credible?\n\na. government guidelines prepared in 1977 outlining the best ways to…

which source is the most credible?\n\na. government guidelines prepared in 1977 outlining the best ways to check for lead in a citys drinking water\nb. a report from a company that makes paint products showing that lead paint is dangerous only when its eaten\nc. an interview with a local parent who says her child has suffered behavior problems after being exposed to lead\nd. a recent article in a respected magazine explaining that the country has a long way to go to stop lead poisoning

which source is the most credible?\n\na. government guidelines prepared in 1977 outlining the best ways to check for lead in a citys drinking water\nb. a report from a company that makes paint products showing that lead paint is dangerous only when its eaten\nc. an interview with a local parent who says her child has suffered behavior problems after being exposed to lead\nd. a recent article in a respected magazine explaining that the country has a long way to go to stop lead poisoning

Answer

Brief Explanations:

To determine the most credible source, one must evaluate the currency, authority, and objectivity of the information:

  • Option A is outdated (1977), and scientific methods for testing water have advanced significantly since then.
  • Option B presents a conflict of interest, as a paint company may downplay the risks of its own product types to avoid liability.
  • Option C is an anecdotal account, which provides personal perspective but lacks the scientific rigor or broad data needed for high credibility.
  • Option D is the most credible because it is recent and comes from a "respected magazine," implying a process of editorial review and fact-checking without an obvious commercial bias.

Answer:

D. A recent article in a respected magazine explaining that the country has a long way to go to stop lead poisoning