Which of the following states existed prior to European colonization of Africa?

Mozambique, while having a long history, was not an independent state prior to European colonization. The region was dominated by various indigenous tribes and later became a Portuguese colony in the late 15th century. Thus, its political structure as a unified state emerged only under colonial influence.

Kenva is not recognized as a historical state prior to European colonization. The name may refer to a misspelling of "Kenya," which was comprised of various tribes and chiefdoms before colonial rule. Therefore, it does not represent a unified state in the same manner as Ethiopia.

Before European colonization, Nigeria was home to numerous ethnic groups and kingdoms, such as the Hausa, Yoruba, and Igbo. However, it did not exist as a united state until the British colonial administration established Nigeria in the late 19th century. Thus, it cannot be classified as a pre-colonial state in the same sense as Ethiopia.