I have really short time, so I need answers quick, thank you

For a transmission medium, SNRdb is given as 27. The given capacity of 32,85 Mbps is valid for which bandwith and amount of signal level? a. Signal level = 25 Bandwith = 3,68 MHz O b. Signal level = 16 Bandwith = 3,65 MHz O c. Signal level = 4 Bandwith = 3,66 MHz d. Signal level = 49 Bandwith = 3,63 MHz O e. Signal level = 25 Bandwith = 3,71 MHz