Who was the Prime Minister responsible for the construction of the Canadian Pacific Railway?

The Prime Minister responsible for the construction of the Canadian Pacific Railway was John A. Macdonald. He played a crucial role in promoting the railway as a way to connect Canada from coast to coast, which was integral to national unity and economic growth. The completion of the railway in 1885 not only facilitated transportation of goods and people but also was a strategic move to assert Canadian sovereignty, particularly in the western regions. Macdonald's vision of a transcontinental railway was foundational for the development of Canada's infrastructure and economy, influencing immigration policies by making travel easier for settlers moving to the western provinces.

Other options represent significant figures in Canadian history, but they are not associated with the railway's construction in the same way that Macdonald is. Alexander Mackenzie, for example, had a different set of priorities during his time as Prime Minister, focusing more on other reform initiatives. Therefore, Macdonald's leadership during the construction period is a key part of Canadian history, highlighting his commitment to nation-building through infrastructure projects.