Salvator Lizard in Sunderbans burrows its home in the ground away from the tiger predators. As different local populations of Salvator Lizards of the same species dig homes of different styles, zoologists have concluded that the lizards' building styles are a culturally acquired, rather than a genetically transmitted, trait.
Which of the following, if true, would most strengthen the conclusion drawn by the zoologists?
A. Young Salvator Lizards are incapable of digging burrows and need years of instruction from their immediate elders before becoming accomplished in the local style.
B. There are more common characteristics than there are differences among the Salvator Lizard's homing styles.
C. Burrows of one species of Salvator Lizard lack the characteristics of the homes of most other species of Salvator Lizards.
D. Salvator Lizards are found only in Bangladesh and Bengal, where local populations seldom have contact with one another.
E. Howls of some Salvator lizards are learned rather than transmitted genetically.