Which of the following rodents is considered to live in colonies rather than individual territories?

Norway rats (Rattus norvegicus) are social rodents that live in colonies with a hierarchical structure, often nesting in burrows or building basements. TheGeneral Pest Management: Guide for Commercial Applicators - Category 7A(Chapter 8: Rodents) describes their colonial behavior. Option A (white-footed mouse) and Option B (house mouse) are more solitary or live in smaller family groups, not large colonies.