Sec. 27. A property and casualty insurer's RBC must be determined in accordance with the formula set forth in the RBC instructions. The formula must take into account (and may adjust for the covariance between):
(1) asset risk;
(2) credit risk;
(3) underwriting risk; and
(4) all other business risks and such other relevant risks as are set forth in the RBC instructions;
determined by applying the factors in the manner set forth in the RBC instructions.