Read the reading below carefully, and then complete it with the best option A, B, C or D given below:
In between the (1) ______ are the Prairie Provinces and the eastern provinces of Ontario and Québec. Rolling wheat (2) ______ cover much of the Prairie Provinces—Alberta, Saskatchewan, and Manitoba.

They (3) ______ produce more than one-fifth of the world's wheat. (4) ______ Two-thirds of Canada’s people live in Ontario and Québec. These two provinces are Canada's business and (5) ______ industrial heartland. Toronto, Canada’s largest city, is in Ontario. So is Canada’s capital, Ottawa. Montréal, the second largest city, is in Québec.

In between the (1) ______ are the Prairie Provinces and the eastern provinces of Ontario and Québec.