Which Is the Best Standard-Form Representation of the Following Argument

Which is the best standard-form representation of the following Argument from Principle?
After asking and receiving assurance of confidentiality, a new client, full of remorse, tells his psychologist that two months earlier he gave his 73 year-old wife sleeping pills to end her life peacefully, and then he staged a bathtub drowning that resulted in an accidental death ruling by the medical examiner. His wife, he says, suffered from advanced Alzheimer's disease and was suffering greatly as the disease progressed.
What should the psychologist do here?
Should she report the client?
She most certainly should not. The right action in a situation is the one that could be expected to produce the most total happiness when you weigh up the effects on everyone. In this case, keeping the patient's confidentiality would produce the most happiness, so that's what the psychologist should do.

A) 1) Reporting the client would cause a lot of unhappiness for everyone.
2) The client helped his wife end her life peacefully, which avoided unhappiness. So, the psychologist should not report the client.
B) 1) The psychologist should not report the client.
2) Keeping the client's confidentiality would produce the most happiness.
So, the right action in a situation is the one that could be expected to produce the most total happiness when you weigh up the effects on everyone.
C) 1) The right action in a situation is the one that could be expected to produce the most total happiness when you weigh up the effects on everyone.
2) Keeping the client's confidentiality would produce the most total happiness. So, it is right for the psychologist to keep the client's confidentiality.
D) 1) The client told the psychologist he gave his wife sleeping pills to end her life.
2) It would produce the most happiness if the psychologist kept the client's confidentiality.
So, the psychologist should keep the client's confidentiality.