The research reviewed in the passage suggest that ______.

单项选择题Helsing speculates that husbands suffer from the death of a spouse because they are ______.

单项选择题One of the results of grief mentioned in the passage is ______.

单项选择题According to researchers, Richard Nixon’s death was ______.

单项选择题The passage states that while married couples can prepare for grieving by

单项选择题Which title is more appropriate to express the primary idea