A String Whose Length Is 1 M Is Fixed at Both

Multiple Choice

A string whose length is 1 m is fixed at both ends and vibrates according to the equation
Y(x, t) = 0.04 sin $\pi$ x cos 2 $\pi$ t
Where the units are SI. The total number of nodes exhibited by the string is

A) 1
B) 2
C) 3
D) 4
E) 5