(C) The relationship is based on the primary appendages used for movement or interaction with the environment.Humans use their $Arms$ for holding and

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(C) The relationship is based on the primary appendages used for movement or interaction with the environment.Humans use their $Arms$ for holding and manipulating objects.Similarly,a $Cockroach$ uses its $Legs$ for movement and interaction with its surroundings.Therefore,the correct option is $C$.