For the Following Issue, Discuss Which Source You'd Trust More

Essay

For the following issue, discuss which source you'd trust more, and give at least one reason why. You may want to add to or otherwise modify our list of sources. And do keep in mind that we are glad our livelihoods do not depend on a general consensus on our rankings.
Issue: What levels of mercury and other metals in fish are high enough to make consumption of them hazardous to humans?
a. an article in a journal called Diet and Health, published for vegetarians
b. a commercial fisherman
c. a family medical doctor
d. a spokeswoman for the National Institutes of Health
e. a toxicologist who works for the Los Angeles coroner's office