A. Robots are being used in sumo wrestling contests.

B. Robot sumo contests are better than human sumo contests.

C. Robot sumo uses robots instead of humans.

D. Watching robot sumo is boring.

A. Students need a good plan for defeating other robots.

B. Students compete against their classmates and students from other schools.

C. Students compete in robot sumo contests.

D. Students must be creative to win.

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.