Why were arab settlers particularly influential along the swahili coast?

a) they were the bantu’s major trading partner.
b) they established many of the trading cities.
c) they controlled all of the regional trade.
d) they introduced trade to the region.

well that depends on how deep the hole is. you'd first go through te crust of the earth, then the upper mantle, then the lower mantle then the outer core, then the inner cor then you'd be stuck in the core to melt.

this is a good question! i'll do some research and come back when i have the answer!