The correct answer to this open question is the following.
Although there are no options attached, we can say the following.
The way that interdependence had an effect on commerce in ancient Egypt was that interdependence allowed ancient Egypt to expand its trade to many regions along the Nile River down south until Nubia and far beyond.
This interdependence made Egyptian products reach far places. They traded linen, gold, papyrus, sugar cane, cooper, cash crops, and more. Their trade partners also traded their products to Egypt, creation a fine trade relationship that favored the many. Specially Nubia. The Nubian territory had many riches that were of interest to Egypt.
