Where might a slave captured farther south along the african coast, in the equatorial regions (around the equator), most likely have been shipped?
a. north america
b. south america
c. the ottoman empire
d. the islands of the caribbean

I'd recommend saying South America simply because that is the closest place to Southern Africa of the four options. The Spanish (who were colonizing South America at the time) probably were getting slaves as cheap farming labor while they were setting up colonies and missions there.