G4D11 (B) 
How close to the upper edge of the 20 meter General Class band should your displayed carrier frequency be when using 3 kHz wide USB? 
A. 3 kHz above the edge of the band
B. 3 kHz below the edge of the band
C. Your displayed carrier frequency may be set at the edge of the band
D. Center your signal on the edge of the band
