If an npn transistor has a beta cut-off frequency fB of 1MHz, and emitter short circuit low frequency current gain 0 of 200, then unity gain frequency fT and alpha cut off frequency f respectively are

• A. 200 MHz, 201 MHz
• B. 200 MHz, 199 MHz
• C. 199 MHz, 200 MHz
• D. 201 MHz, 200 MHz