Based on the maps and your knowledge of world history, which of the following best describes the effect of the spread of Islam on Indian Ocean trade?
answer choices
- It led to the expansion and intensification of commerce along already existing trade routes.
- It led to the disappearance of previously established trade networks.
- It led to an expansion of land-based caravan trade but also to a decline of maritime trade.
- It led to the first creation of trade links between previously isolated world regions.