Calculate the flux of F=⟨x,y,z⟩\mathbf{F} = \langle x, y, z \rangleF=⟨x,y,z⟩ through the unit sphere SSS centered at the origin.
2π2\pi2π
4π4\pi4π
3π3\pi3π
4/3π4/3\pi4/3π