What was napta a favorable location for trade?

The son of King Kashta and he was important because he founded a dynasty that ruled Egypt and Kush from Napata. ... Powerful Shiite kings ruled from the city of Napata. It was a favorable location for trade as it stood along the upper Nile where the trade caravan crossed the river.

Explanation:

- "made the south's economy grow rapidly and a small effect that a lot of people don't know is that it made the more demand of slaves and cotton products. and also new states formed due to plantations growing in size."

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d. promised it other land