Which of the following is not true of contingency planning? A. The maximum tolerable downtime (MTD) is the maximum period of time that a business can survive a disabled critical function. B. The recovery time objective (RTO) is the amount of time needed to recover a business process. It is often made up of several interlinked RTOs. C. The recovery point objective (RPO) is the point to which data must be recovered. D. The mean time between failures (MTBF) is closely associated with the recovery time objectives (RTOs) of several integrated critical business functions (CBFs)