Becker & Smith, CPAs, and its client, Troper Lighting, are discussing a possible advisory engagement in which the firm would review Troper's account receivable (A/R) system and recommend changes that would streamline the company's collection process. Troper will pay Becker & Smith a fee based on improved performance in A/R collections. Would this contingent fee arrangement raise any ethical concerns under the profession's rules?

Yes, but only if Becker & Smith was performing other services for Troper.

Yes, if Becker & Smith also performed a review engagement for Troper.

No, but only if Troper is a publicly traded company subject to SEC and PCAOB rules.

No, provided Becker & Smith documents the arrangement in the engagement letter.