In BJT the collector current is

• A. \(\frac{\beta }{\alpha }{I_{co}} + \beta {I_B}\)
• B. \(\frac{{{I_{co}}}}{{1 + \beta }} + \frac{{{I_B}}}{\beta }\)
• C. \(\frac{{{I_{co}}}}{{1 - a}} - \frac{{{I_B}}}{{a\;}}\)
• D. \(\frac{{{I_{co}}}}{{1 - \beta }} + \frac{{{I_B}}}{{a\;}}\)