Raising your hand is an important rule in school. This rule was made to keep order in the classroom. If no one raised their hands the classroom would be chaos. No one would be able to learn or hear one another. It would be too loud and no one would know who was speaking. This is why raising your hand is a rule that should be followed.
Answer:
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<span>C. He knows that Jean will regret it if she does not participate in the songs at school.</span>