Answer:
Nile River
Step-by-step explanation:
From the map provided, the body of water that connected trade between Egypt and Nubia is the "Nile River."
This is evident in the fact that the river which originated from the Mediterranean Sea flowed from Memphis in Egypt and then flowed through the Eastern desert and Aswan before the land of in the land of Nubia.
Therefore, in this case, the correct answer is "Nile River."