Which ancient civilization was not part of Northeastern Africa?

The answer options are missing, but we can see which civilizations WERE part of Northeaster Africa to get the answer.

The most famous and developed was Egyptian civilization, that has a rich history and had developed around the banks of the river of Nile, at the territory of today's Egypt.

Underneath it was a Nubian territory, spread at the territory of today's southern Egypt and northern Sudan. Few civilizations developed here:

Kerma culture (The Kingdom of Kerma) at the territory of today's Sudan, that flourished around 2500 BCE. Kingdom of Kush that developed afterward, around 1070 BCE, in the valley of southern Nile, and is divided into Napatan period (Kingdom of Napata, named for the capital of the civilization) and Meroitic period, for the later capital of Meroe. Blemmyes culture, the group of nomadic tribes that traveled around Nubia

In Northern Ethiopia, there was the Kingdom of Aksum, although it developed only in the first century after Christ.

There were also civilizations at the place of today's Lybia - stone-age Aterian culture and the ancient Berber culture, such as iron-age Garamantes.

Therefore, any of the ancient civilizations that are not mentioned here were NOT part of the Northeathen ancient Africa.