In the given scenario, the duties of county officials are compared with the specific duties related to the board of supervisors using a Venn diagram. County officials typically manage departments, develop policies, oversee budgets, and represent the interests of the county and its residents. The specific duties of county officials may vary depending on their jurisdiction and position. The death of a candidate for the board of supervisors raises questions about the process for filling the vacancy and its impact on the board's functioning. The Venn diagram visually compares the general duties of county officials with the specific duties associated with the board of supervisors, identifying any overlapping responsibilities and unique tasks specific to the board. Overall, the Venn diagram is the most suitable graphic organizer for describing the duties of county officials in the given scenario.