Answer:Not being loud under the pressure, knowing if you step on a floor board too loud you would get caught. Navigating around the annex would get easier because you’d learn where the floor freaks loudly. To make less noise they just didn’t move around a lot so having patience would get more difficult.
Explanation:
The author includes logical evidence that Indian workers and formerly enslaved people didn't get along because wages went down.
In the passage, it states:
"The Indian coolies and the ex-slaves, who resented the newcomers flooding the colonies and driving down wages, were instant rivals."
In this case, the Indian coolies are the newcomers and the ex-slaves are the ones resenting them. Therefore, the ex-slaves resent the Indian coolies because they were driving down wages.