C
C
A
72 dB
C
B
72 dB
C
B
72 dB
C
72 dB
C
72 dB
D
D
72 dB
C
C
B
72 dB
E
C
C
B
C
B
E
C
D
E
B
C
C
B
B
C
C
A
C
C
C
B