How were rlationships between societies impacted by the indian ocean trade network?

A. the middle east and africa developed a negative relationship because only africa benefitted from trade
B. it promoted a postive relationship because it allowed arab city states to grow
C. the two civilizations developed a negative relationship because west african traders would not exchange goods other than gold
D.islam spread peacfully through africa from the muslim trders in the indian ocean trade network

B. it promoted a positive relationship because it allowed Arab city-states to grow