Argument: People should travel to Mars because only human explorers can answer many important questions about the planet.Counterclaim: Robots can collect data and study Mars. Robots have already discovered ice below the planet’s surface.Based on the argument and counterclaim, which statement is an effective rebuttal?
Answer
A
It would be much better to have the human explorers even though robots have been helpful.
B
Research shows that space travel can still have dangerous side effects.
C
NASA researchers have shown that humans are faster than robots and make quicker decisions.
Explanation
An effective rebuttal should address the counterclaim that robots can study Mars by explaining why human explorers are still needed. Choice C argues that humans can work faster and make quicker decisions than robots, which directly compares their abilities. Choice A merely says humans would be better without giving a reason, and choice B raises a danger that does not answer the point about robots collecting data.
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