Mary,a CPA,accepted a Fee from Rajiv,a CPA,for Referring One of Mary's

Mary,a CPA,accepted a fee from Rajiv,a CPA,for referring one of Mary's clients to him.Mary's client was not informed of this referral fee.Was Mary's acceptance of this fee permitted by applicable professional rules?

A) Yes, if Rajiv possesses specialized skills that Mary lacked
B) Yes, if Rajiv possesses specialized skills that Mary lacks and Rajiv agreed to a non-contingent referral fee arrangement with Mary prior to provide services to the referred client
C) Yes, as long Mary's fee arrangement is a lump-sum amount rather than a percentage of the amount that Rajiv bills this client for his services
d) No