Similarly to the United States, the movement of Canadian settlers across the western frontier led to —

Similarly to the United States, the movement of Canadian settlers across the western frontier led to mass migration to the Canadian West.

Explanation:

Political stresses in Europe also worked high in the late 1800s, as imperialism rearranged and boundaries shifted. For Hungarians, Ukrainians, and Romanians, overpopulation and unemployment proposed their migration to the Canadian West. the Canadian West was inaugurated for majority settlement and became home to millions of immigrant settlers exploring a new life.

the correct answer is d. the lengths of side sr and side s’r’ are in the ratio 1: 3.