Final answer:
The Prophetic Movement, advocating for the worship of Yahweh alone, played a significant role among the Israelites from 750 to 550 BCE, challenging polytheism and the extant religious establishment.
Step-by-step explanation:
The Prophetic Movement was an integral part of the Hebrews' religious evolution that emphasized the worship of Yahweh exclusively and stood in opposition to polytheism as well as the Yahwist establishment. This movement arose during a period where prophets sought to speak on behalf of the disenfranchised, urging a return to a more communal and egalitarian society. The Prophetic Movement lasted from about 750 BCE to 550 BCE, which included the time before the Assyrian invasion of Israel through the Babylonian Captivity of the Jews. The prophets of this movement were instrumental in shaping the monotheistic worship of Yahweh, and they played a pivotal role against the Assyrian demand for the acknowledgment of Ashur as a supreme god. They posited that Yahweh was not only superior to Ashur but that Ashur was not a deity at all. Therefore, based on the context provided, the Prophetic Movement brought God's word to B) Israelites.