I believe it’s c bc they’re going to want to communicate a specific message.
The statement which best states the central idea of the excerpt is "The rat's fame".
<h3>The central idea.</h3>
The central idea of an excerpt means the major idea, information or point the excerpt is describing or referring to.
The central idea of the excerpt from "Exploring Mars.” is "The <em>rat's fame".</em> The scientist believed the rats fame isn't really bad because it can help people get interested in the Rover's mission.
The rat fame increase the curiosity of people to see more photos by visiting the NASA's website, thereby, helping to increase their knowledge on Mars.
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