Consider the equation (y'' + q(x) y = 0), where (q(x)) is a continuous function. Assume that (y₁(x)) and (y₂(x)) are two linearly independent solutions of the above equation.
a) The Wronskian (W[y₁, y₂](x)) is identically zero.
b) The Wronskian (W[y₁, y₂](x)) is not identically zero.
c) The Wronskian (W[y₁, y₂](x)) cannot be determined.
d) None of the above.