Which statement about 'baby blues' accurately distinguishes it from postpartum depression?
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A
Baby blues involves psychotic features whereas postpartum depression does not
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B
Baby blues typically resolves within 2 weeks without treatment; postpartum depression persists and requires intervention
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C
Baby blues only occurs in first-time mothers; postpartum depression can recur
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D
Baby blues is caused by sleep deprivation alone, not hormonal changes