A transverse wave of equation y = 2 sin `(0.01 x +30 t)` moves on a stretched string from one end to another end. In the equation of wave, x and y are in cm and t is in second. The time taken by wave to reach from one end to another end of string is 5 s. The length of string is
A. 10 m
B. 100 m
C. 150 m
D. 160 m