Ultimately, anything that led to wealth is the answer, but more specifically; Gold is a big one, land in general was something sought for, a lot of people wanted to farm tobacco, while others wanted to get in on the fur trade, and finally lumber.
The answer is E.
A, B, C, and D are either irrelevant or already included.
I think Isa A…………….,,,,,,,
Calcium carbonate in shells.
