Which Christian African Empire is also influenced by Judaism and Islam through trade?

Kingdom of Aksum.

Explanation:

The kingdom of Aksum was located in the area of the present-day highlands of Eritrea and northern Ethiopia, on the shores of the Red Sea, roughly in the first millennium of our era. It was born in the first century and disintegrated around the 9th century. The center of the kingdom was the city of Aksum.

Aksum traded with India and the eastern Mediterranean. Ivory, tortoiseshell, hooves, spices, incense, gold, gems and slaves, among others, passed through Africa. In return, metals, glass, textiles, wine and olive oil were received. The power of the kingdom peaked in the time of King Ezana in the 300s, when the state converted to Christianity. It extended to the Red Sea and also covered most of present-day Yemen.

c, they united with once

well the fact it is basically a peninsula allowed trade to come from many places, thus allowing cultural diffusion to take place. india has seasonal monsoons that merchants travel back and forth from india using the monsoons wind patterns