For Which of These Patients Would Systematic Desensitization Most Likely

For which of these patients would systematic desensitization most likely be used?

A) Joe,who has been depressed for two years and has frequent suicidal thoughts.
B) Abner,who is sexually attracted to young children.
C) Yara,who does not interact with members of her family due to her schizophrenia.
D) Alice,who will only attend classes if they take place on the ground floor of a building.