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Students compete in robot sumo contests. They learn how to build their own robots. They compete against their classmates and students from other schools. To win, students must be creative. They must have a good plan for defeating other robots.
Which of the following is a supporting detail of this paragraph?
a. Students like building sumo robots.
b. Students compete in robot sumo contests.
c. They use excellent strategies to defeat other robots.
d. They must have a good plan for defeating other robots.
d. They must have a good plan for defeating other robots.