An amplifier has a programmable (user selectable) gain (Vout/Vin) of 10, 100, or 500. What is the gain in dB for each of these selections?
a) 20 dB, 40 dB, 50 dB
b) 10 dB, 20 dB, 50 dB
c) 30 dB, 40 dB, 100 dB
d) 10 dB, 40 dB, 60 dB