The three rules known for unifying Japan are Oda Nobunaga, Toyotomi Hideyoshi, and Tokugawa Ieyasu.
The Zhou Dynasty.
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~Korey :)
The answer to this question is the letter C. The Incident Commander for previous operational period. It should be acknowledged that handover of command on an expanding incident is to be anticipated. It does not reflect on the proficiency and capability of the current Incident Commander.