What Is Edwin Shneidman Referring to in His Use of the Term

What is Edwin Shneidman referring to in his use of the term psychache?

A) A person who contemplates suicide is likely to harbor simultaneously a wish to live and a wish to die
B) Unbearable mental pain caused by the frustration of a person's most important needs
C) A person's strong, unconscious hostility combined with a lack of capacity to love others
D) Suicidal events that involve both the victim and a significant other in some way