Final answer:
The Flood County permit officer should not issue a floodplain development permit based on the denial of the state permit.
Step-by-step explanation:
The Flood County permit officer should not issue a floodplain development permit if the state Department of Environmental Protection is going to deny the state permit for building on the primary sand dunes near Site F. The denial of the state permit indicates that the proposed development does not meet the requirements set by the Department and could have negative environmental impacts. Therefore, it would be appropriate for the Flood County permit officer to follow the decision of the Department and deny the floodplain development permit as well.