Disclosure of prior association with the client and disclosure of any possible source of conflict of interest are crucial procedural safeguards to maintain objectivity and transparency. Acting in a fraudulent manner is clearly not a safeguard; it is the opposite. Providing peer-review of valuation can be a valuable safeguard to ensure the accuracy and objectivity of assessments. Therefore, options (3) and (4) are not procedural safeguards, making (A) the correct answer.