Respuesta :
The answer is "D) A report by the state traffic authority" because a report from the state is unbiased (unopinionated) and is, therefore, more reliable than the other three sources.
Answer: D) a report by the state traffic authority.
Explanation: When writing an essay it is very important to support our arguments with evidence (facts, statistics, and examples) from reliable sources (sources that are objective and trustworthy). If we are writing an essay on the increase in drunk-driving accidents in our state, the most trustworthy source would be a report by the state traffic authority, because it won't include any opinions, just the facts and statistics.