【单选题】
A <{p}>Slogan shouting.<{/p}><{p}><{br/}><{/p}>
B <{p}><{span style="font-size: 1em;"}>Warm up exercises.<{/span}><{br/}><{/p}><{p}><{br/}><{/p}>
C <{p}><{span style="font-size: 1em;"}>Line dancing.<{/span}><{br/}><{/p}><{p}>
<{/p}><{p}><{br/}><{/p}>
D <{p}><{span style="font-size: 1em;"}>Energy raising.<{/span}><{br/}><{/p}>
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