Which does not describe all three kingdoms of ghana, mali, and songhai

The options are missing in the question statement. However, I managed to find from another source. These are

A.they ruled much of West Africa

B.they built large cities in the West African rain forest

C. they controlled the gold for salt exchange

D. they grew powerful through trade

B. They built large cities in the West African rain forest.

Explanation:

"They built large cities in the West African rain forest" doesn't describe all three kingdoms of Ghana, Mali, and Songhai.  Ghana, Mali, and Songhai were three of the greatest western African trading states. They controlled the trade of gold, salt, and merchandise between North Africa and sub-Saharan Africa in the 16th century. Their strong trade grew them powerful.  

since there are no options posted i'll give you a few examples.

a dolphin's flipper, bird's wing, cat's leg.

this might