Answer:
Correct answer is A. Farming, oil drilling, and mining .
Step-by-step explanation:
A is correct because Prairie Region is one of the richest parts of Canada, due to excessive oil production. On the other side we can find different stock here, mostly cattle and sheep.
B is not correct as hunting in general is not considered an important part of Canada's economy.
C and D are also not correct as this is continental part of Canada, thus water industry is not in the focus.