Question

which statement expresses a central idea developed in the text?
rescue robots are a relatively recent technological invention.
individuals tend to react to rescue robots as if they are real people.
rescue robots are useful because they do not overreact during crises.
scientists are working hard to create rescue robots with genuine emotions.

Explanation:

To find the central - idea, we need to consider the overall theme of the text. The idea that individuals react to rescue robots as if they are real people likely encompasses a significant aspect of how rescue robots are perceived and interacted with, which could be a central idea. The other statements focus on more specific aspects like the recency of invention, usefulness due to lack of over - reaction, or the creation of robots with emotions, which are more likely supporting details rather than the central idea.

Answer:

Individuals tend to react to rescue robots as if they are real people.