A student while performing experiment with a sonometer with bridges separated by a distance of 80 cm, missed out some of the observations. However, he claimed that the three resonant frequencies for a given tuning fork were 84, 140 and 224 Hz. The speed of transverse waves on the wire is

A

33.30 m/s

B

330.0 m/s

C

44.80 m/s

D

448.0 m/s