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For a $\mathrm{BJT}$, the common-base current gain $\alpha=0.98$ and the collector base junction reverse bias saturation current $\mathrm{I}_{\mathrm{CO}}=0.6 \; \mu \mathrm{A}$. This $\mathrm{BJT}$ is connected in the common emitter mode and operated in the active region with a base drive current $\mathrm{I}_{\mathrm{B}}=20 \mu \mathrm{A}$. The collector current $\mathrm{I}_{\mathrm{C}}$ for this mode of operation is

1. $0.98 \mathrm{~mA}$
2. $0.99 \mathrm{~mA}$
3. $1.0 \mathrm{~mA}$
4. $1.01 \mathrm{~mA}$