Correct option is DIn a common base transistor configuration, the collector current IC can be calculated using:IE=IC+IBGiven IB=0.11 mA and IE=1.25 mAIC=IE−IB=1.25 mA−0.11 mA=1.14 mA\text{In a common base transistor configuration, the collector current } I_C \text{ can be calculated using:} \\I_E = I_C + I_B \\\text{Given } I_B = 0.11 \text{ mA and } I_E = 1.25 \text{ mA} \\I_C = I_E - I_B = 1.25 \text{ mA} - 0.11 \text{ mA} = 1.14 \text{ mA}In a common base transistor configuration, the collector current IC can be calculated using:IE=IC+IBGiven IB=0.11 mA and IE=1.25 mAIC=IE−IB=1.25 mA−0.11 mA=1.14 mA