Concept:Division of labour means different individuals in a group perform specialised roles for the benefit of the whole community.
Explanation:Termites are social insects that live together in large, organised colonies.
A termite colony is divided into distinct castes such as workers, soldiers, and reproductives.
Workers build the nest and gather food, soldiers protect the colony, and reproductives are responsible for laying eggs.
Each caste has its own specific function, which clearly demonstrates division of labour.
In contrast, butterflies, cockroaches, and houseflies live independently and do not form structured societies with specialised roles.
Therefore, among the given options, only the termite shows division of labour.
Answer:C. termite