C
A
73 dB
B
A
69 dB
B
A
70 dB
A
A
69 dB
D
B
73 dB
B
A
70 dB
B
B
69 dB
B
B
69 dB
B
A
70 dB
B
A
B
A
69 dB
B
72 dB
D
B
72 dB