Following the conversion of north africans to islam, where did the deepest penetration of islam occur south of the sahara?
a. in the west african kingdoms of ghana and mali
b. along the east coast of africa
c. in namibia
d. along the southern coast of africa

what class is this for i can then

both eastern and western early north american cultures were known for building wigwams and longhouses.

wigwams, also called wetus, were small houses of 8-10 feet tall, made of wooden frames covered with woven mats and sheets that were used by algonquian indians. similarly,   longhouses were also used by algonquian and the iroquois tribes, and they were built as well with pole frames and elm bark covering. however, the main difference between wigwams and longhouses is that the latter was much larger than the former, with 200 feet long, 20 feet wide, and 20 feet high with inner raised platforms used for sleeping space.