In a fixed-bias common-emitter Circuit. A. Maintaining \(I_B\) constant will not provide operating-point stability as ẞ changes. B. IB should not be allowed to change as to maintain \(V_{CB}\) and \(I_C\), constant as ẞ changes. C. The reverse saturation current Ico doubles for every 10 °C rise in temperature. D. The value of stability factor \(S=(1+\beta)\) E. The circuit is highly unstable