Take off D; the North had won some battles up to that point. Rip off A; the South would never let go of slavery. Take off B, since the Union had some wins already. You can now clearly see where the answer is.
The right answer for the question that is being asked and shown above is that: "the construction of mosques in ancient Ghana." Cultural diffusion is the transmission and blending of cultures over different civilizations. An example of cultural diffusion is that <span>the construction of mosques in ancient Ghana</span>
D. Illegal search and seizure