Help please 1 multiple choice question:D

Question

anonymous · Answer

3. Which of the following is true about eastern Africa?
It was strongly influenced by Christianity. 
Europeans developed a string of ports along the coast. 
It was invaded by hordes of people from the Niger region.
 Muslims began to settle there in the eighth century.

anonymous · Answer

@GabbyCakes  do you know by any chance:D

joel_the_boss · Answer

I think it be D, but im not sure :P

anonymous · Answer

okay ima just make sure with @GabbyCakes  thank you joel:)

anonymous · Answer

@Monica75 I'mma go with @Joel_the_boss  on this one ;D

joel_the_boss · Answer

:P thanks @GabbyCakes

anonymous · Answer

OKAY :) WHO GETS THE MEDAL LOL I DONT WANA BE MEAN BECAUSE U BOTH HELPED ME>..

anonymous · Answer

@Joel_the_boss haha your welcome :)

anonymous · Answer

@Joel_the_boss can have it :)

anonymous · Answer

you sure, how kind:) okay until next time thanks:)

anonymous · Answer

@Joel_the_boss thanks ^.^