A day of national mourning is one marked by mourning and memorial activities observed among the majority of a country's populace. Most of these days are determined by that nation's government. Sociologists claim that national mourning is both a symbolic and political gesture, as well as a meaningful expression of grief.
On the one hand, predetermined mourning days reflect and create a sense of national community, united in a feeling of loss. On the other hand, and mostly in the case of mourning days instigated by the people, such as the day of Princess Diana’s funeral, they reflect a spontaneous bout of pure grief manifested in the closing of shops and banks, and the cancellation of sports, theater and cinema showings.
Although the intensity of the mourning can differ dramatically from one country to another, there is no doubt that a day of collective grief is extremely good for national unity.
Which one of the following statements is definitely correct in light of the text?