Answer:
During the period of 1850-1890, British colonists benefited greatly from the expansion and development of Canada. They were able to acquire vast amounts of land, establish successful businesses, and hold prominent positions in government and society. The construction of railways and other infrastructure projects, as well as the discovery of natural resources such as timber and minerals, provided ample opportunities for British colonists to prosper in Canada. Additionally, their close ties to the British Empire gave them access to global trade networks and markets, further enhancing their economic and social status in the country.