What is the 3D spherical harmonic oscillator wavefunction?
a) psi(r, theta, phi) = Rnl(r)Ylm(theta, phi)
b) psi(x, y, z) = e-momega(x² + y² + z²)
c) psi(r, theta, phi) = ei(kr - omega t)
d) psi(x, y, z) = Rnl(r)Ylm(theta, phi)