(A) 140 kHz , 60 kHz
(B) 1020 kHz , 980 kHz
(C) 1030 kHz , 970 kHz
(D) None of the above
(A) 140 kHz , 60 kHz
(B) 1020 kHz , 980 kHz
(C) 1030 kHz , 970 kHz
(D) None of the above
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