A string on a guitar is stretched between two points 35.0 cm apart with a tension of 65.0 N. The mass/length of the string is 0.00400 kg/m. The velocity of wave propagation on the string is

a)210 m/s.
b)305 m/s.
c)198 m/s.
d)128 m/s.
e)273 m/s.