C
C
C
C
C
D
C
70 dB
C
C
C
C
71 dB
C
C
71 dB
C
C
71 dB
E
C
D
C
69 dB
D
C
69 dB
B
C
71 dB
C
C
C
C
C
C
C
C
C
C
F
E
E
C
C
C
C
C
C
C
E
C
E
C