under british rule in kenya, which began in 1890,
european immigration to the country was greatly restricted
africans continued living in their traditional homelands
the masai and kikuyu lost territory and influence
the masai and the kikuyu populations grew rapidly and became the dominant groups in the country

C. the Masai and Kikuyu lost territory and influence

Explanation:

Under the "British rule in Kenya" that began in 1890, the "Masai and Kikuyu" lost territory and influence. The most fertile land in Kenya is the central highlands along the "Great Rift Valley". This has been the main area of activities for centuries now. But in 1890 when Kenya came under the British rule, two groups occupied the highlands. These groups were the "Masai and the Kikuyu". But under the British rule, these groups lost most of its fertile farmland and political power as well.