The Nurse Is Conducting a Group Therapy Session When a Female

The nurse is conducting a group therapy session when a female client, who has shared with the group at a previous session that she isolates herself when she feels depressed, suddenly gets up to leave. The appropriate nursing action is which of the following?

A) Tell the client that it is not safe to leave.
B) Encourage the client to stay, and ask the client what she is feeling.
C) Tell the client that if she leaves she cannot return to this therapy group.
D) Lock the door so that the client cannot leave at this potentially vulnerable time.