[单选题]Which of the following is correct about the rated N1 mode? A. An automatic reversion to rated N1 mode occurs in the event of loss of sensed EPR. This occurs when P2 (engine inlet total pressure) and/or P5 (LP turbine exit total pressure) engine parameters are not available. B. The FADEC will determine N1 power setting as a function of TLA, altitude and engine inlet total temperature. The rated N1 mode can also be manually selected through the ENG N1 MODE pb-sw on the overhead panel. C. Both of the above are correct.