While reviewing the risk register, a risk practitioner notices that different business units have significant variances in inherent risk for the same risk scenario. Which of the following is the BEST course of action? • Request that both business units conduct another review of the risk. • Update the risk register with the average of residual risk for both business units. • Review the assumptions of both risk scenarios to determine whether the variance is reasonable. • Update the risk register to ensure both risk scenarios have the highest residual risk