Answer:
The best answer to the request: Choose the statement that is true, would be: In 1492, Europeans did not know the actual size of the world.
Step-by-step explanation:
It must be remembered that before Columbus discovered the Americas, for Europe the world was comprised of: Europe itself, Northern Africa, and Asia. They knew about these places because they were mostly joined by land, and thanks to trade between these regions, cartographers knew and were able to map these lands. But knowledge about how extensive Africa actually was, or that there were five continents, instead of three, and a lot of islands that were unknown to them, was not part of it. What it is true though is that after 1492, with the discovery carried out by Columbus, and through expeditions that took place after his, the knowledge of the real world by Europeans changed dramatically. It is also actually true that Europeans had no idea of how vast the real world was, before Columbus took his journey in 1492.