Why did the boundary of Maasailand also affect community relations?

Correct answer: Because old routes were linked not only with grazing but also with contact and exchange

A boundary does more than divide land on a map. Before colonial restrictions, Maasai movement routes connected grazing grounds, water sources, settlements, and neighbouring groups. People used these routes not only to move animals but also to meet relatives, exchange goods, share information, arrange cooperation, and maintain social ties. Closing or controlling the routes could therefore interrupt community life.

When a boundary prevented movement, groups that had regularly interacted might have fewer opportunities to visit or trade. The loss was social as well as economic and geographical. Therefore option A is correct: old routes were linked with grazing, contact, and exchange. The other choices either describe an absurd effect or incorrectly deny the connection between routes and community relations.