A $741$-type opamp has a gain-bandwidth product of $1 \; \mathrm{MHz}$. A non-inverting amplifier using this opamp and having a voltage gain of $20 \mathrm{~dB}$ will exhibit a $-3-\mathrm{dB}$ bandwidth of
- $50 \; \mathrm{kHz}$
- $100 \; \mathrm{kHz}$
- $\frac{1000}{17} \; \mathrm{kHz}$
- $\frac{1000}{7.07} \; \mathrm{kHz}$