A critical threshold value for a key control indicator (KCI) is the value that indicates that the control is no longer performing its intended function of mitigating a risk. If the KCI reaches or exceeds this value, it means that the control effectiveness has failed and corrective actions are needed. The other options are not the best representations of a critical threshold value for a KCI, because they do not reflect the actual performance or outcome of the control. Thresholds benchmarked to peer organizations, a typical operational value, and a value that represents the intended control state are examples of target or acceptable values for a KCI, not critical or unacceptable values. References = CRISC: Certified in Risk & Information Systems Control Sample Questions