6. 如圖(二)所示電路，VBE(sat) = 0.8 V 及 VCE(sat) = 0.2 V，下列選項何者正確？  
(A) RB = 18.4 kΩ、RC = 186.6 Ω
(B) RB = 30.6 kΩ、RC = 104.3 Ω
(C) RB = 45.4 kΩ、RC = 57.5 Ω
(D) RB = 68.2 kΩ、RC = 28.7 Ω