Danny Lawyer Conspired with Carly Client to Hide Over $700,000

Danny Lawyer conspired with Carly Client to hide over $700,000 of Client's income from the IRS over a period of years. Client forwarded her business income to Danny, who hid it in a trust account. Danny regularly withdrew cash from the account and gave the money to Client as well as made purchases for her. Danny has several partners in his law practice, one of whom is aware of Danny's business dealings with Client. As a result,

A) all of the partners (with and without actual knowledge) have a duty to report Danny's illegal activity to the proper authorities.
B) none of the partners have a duty to report Danny because his relationship with Client is protected by the attorney/client privilege.
C) none of the partners have a duty to report Danny because Danny has the duty to report himself.
D) the partner with actual knowledge of this wrongdoing has a duty to report Danny's illegal activity to the proper authorities.