select the correct answer.\nhow does regular exercise help make us more alert and energetic?\na. it gets our…

select the correct answer.\nhow does regular exercise help make us more alert and energetic?\na. it gets our hearts beating faster and gives us a rush of energy.\nb. exercise increases our endurance and therefore we feel less tired.\nc. during exercise the brain releases endorphins, the chemicals that help improve our mood\nd. we breathe in more oxygen while exercising, which helps us feel more awake.

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