What does the passage mainly talk about？A．Winter is a harsh season to keep good mental hea
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What does the passage mainly talk about？
A．Winter is a harsh season to keep good mental health.
B．SAD is neglected by us and should be taken seriously.
C．The truth about seasonal affective disorder.
D．The relationship between season and mental health.
请帮忙给出正确答案和分析，谢谢！