Final answer:
The correct answer is D. Fire Chief, which is the highest-ranking position in a fire department's chain of command and the ultimate authority to handle disputes regarding procedures.
Step-by-step explanation:
The question pertains to the hierarchical procedure for resolving disputes in a structured command system, likely within a firefighting organization. If any dispute arises regarding the specified procedure, the chain of command dictates that the issue should be escalated accordingly. The correct option that fills in the blank is D. Fire Chief. The Fire Chief is typically the highest-ranking officer in a fire department and is responsible for overseeing all operations and managing personnel, including handling disputes that cannot be resolved at lower levels of command.
The options provided, such as Battalion Chief, Deputy Chief, and Division Commander, represent different levels within the firefighting command structure, but they rank below the Fire Chief. Therefore, if there's a protocol for escalating disputes beyond the immediate supervisors or mid-level commanders, the ultimate authority is usually with the Fire Chief.