Final answer:
Therapists should refer clients to experts in treating childhood sexual abuse if they have minimal training in this area.
Step-by-step explanation:
When a client discloses past sexual abuse and the therapist has minimal training on treating childhood sexual abuse, it is important for the therapist to act ethically and responsibly. The therapist should refer the client to a therapist with expertise in treating childhood sexual abuse. This ensures that the client receives appropriate and specialized care from someone who has the necessary knowledge and skills to support them through their healing process.