Here comes the math problem.

Logical reasoning problems can be listed in tables.

Suppose a didn't step on the balloon? Participated in tug-of-war? B took part in eating bread, C can't take part in the same project as B, and no one takes part in tug-of-war dance at the same time, so it's contradictory?

Suppose a didn't step on the balloon? Participated in tug-of-war? B participated in the tug of war? And then c takes part in the bread dance?

Established? DE can eat bread or step on balloons in any combination? So 2 is wrong and 4 5 is wrong? 1 is right.

You needn't try again. If you want to verify, you can also push like me. Ask again if you don't understand.

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