Answer:
The correct answer is A. It led to the development of race-based labor systems .
Explanation:
This is correct answer because when the sugar was introduced, the large plantation were built on the soil of the New World. People who worked on those plantations were black slaves, that were brought from Africa. Being treated without dignity, they were the once that were introduced in this race-based labor system.
Native Americans were never integrated in this system, because were in constant feud with the Europeans.
It didn't turned away Europeans from trade with Africa, as they needed labor force from there.
North America was not a global leader in the production of sugar. That is why this answer is also wrong.