Answer:
Correct answer is British Columbia.
Step-by-step explanation:
British Columbia is the correct answer, because Vancouver is the largest city of this province that is located in the west part of Canada.
Quebec is not correct answer. It is located on the east of the country. The major city is Montreal.
Ontario is also not correct. The largest city of that province is Toronto. It is also located in eastern part of the country.
The same goes with the last option. The largest city is Halifax.