[单选题]
Find the first three hzxqvyxx*+, 5mj 8 nq98m77 2oqmgwnriarmonics of a string of linear mass density 2.0n6hl8-n(y)90taqa 8ildzvpy 0 g/m and length 0 lial6y 0 qhav-)nz8ndty(8 9p.600 m when it is subjected to tension of 50.0 N.
A. 132 Hz, 264 Hz, 396 Hz
B. 66 Hz, 132 Hz, 198 Hz
C. 264 Hz, 528 Hz, 792 Hz
D. none of the above
