13. A particle with mass m is moving freely in one dimension along x with zero potential energy. From the viewpoint of quantum mechanics, which following statement is wrong? (A). The time-independent Schrodinger equation is - = Εψ. (B). ψ(x) = can be the wavefunction for the particle with single linear momentum +kħ. (C). ψ(x) = cos(kx) is one of solutions of its time-independent Schrodinger equation. (D). The total energy of the particle is quantized. (Ε). For (x) = cos(kx), its expectation value of the operator is equal to zero.