Final answer:
People from subject states of the ancient Persian empires were ruled by a single emperor. This emperor exercised centralized control through a system of satraps and was known for significant organizational skill and tolerance towards different cultures and religions within the empire.
Step-by-step explanation:
The correct statement about people from subject states of the ancient Persian empires is that they were ruled by a single emperor. The Achaemenid Empire, also known as the First Persian Empire, was an extensive imperial state that operated under a centralized bureaucracy with a king at its head. This king was the supreme ruler who exerted his authority through regional governors, known as satraps, across the empire's vast territories. The Persian kings were seen as the earthly representatives of the Persian god Ahura Mazda and enjoyed loyalty from their diverse subjects. The authorities maintained control and cohesion in the empire by employing efficient organizational structures, such as the building of highways for communication, a modest taxation system, and the strategic mobilization of subject peoples for military campaigns. It is also important to mention that the Persian Government was recognized for its tolerance towards the varied faiths and cultures within its domain.