In which situation may you disclose confidential client information without violating the AICPA Code of Professional Conduct?

In which situation may you disclose confidential client information without violating the AICPA Code of Professional Conduct?

A.) In response to a validly issued and enforceable subpoena.

B.) At the request of another client that needs the information to file its tax return.

C.) In a proposal to a potential client.

D.) As an example in a seminar given for CPE credit.

The answer is In response to a validly issued and enforceable subpoena.