Select four types of vulnerability exhibited by different groups of people.

grief

Explanation:

The loss of appetite and insomnia suffered by Mrs. Phillips stems from the recent loss of her husband. This is a case of grief following the death of loved one.

Bereavement means loss of a loved one. Grief describes a person's response to a serious loss loss. It is an intense feeling of sadness often following the death of a loved one. This sadness leads to several issues which may include loss of appetite and insomnia as mentioned in the question.