Scientists have often debated about whether animals have the capacity for human-like emotional connection. One possible example of such connection is elephants that have been observed apparently paying homage to their dead. In a study conducted in Kenya, researchers placed three objects a piece of wood, a piece of elephant ivory, and an elephant skull-a short distance from a herd. The elephants showed a marked preference for the ivory and the skull. They repeated the experiment with the skulls of an elephant and two other animals. As they predicted, the elephants showed a preference for the elephant skull.
Which generalization can be made based on the passage?
1 Elephant responses to different objects indicate a human-like emotional connection to other elephants.
2 All animals have emotional responses to the deaths of others of their species.
3 Elephants respond to the remains of other elephants in an apparently emotional fashion.