Which Combination of Atomic Orbitals Will Produce an Sp²

Which combination of atomic orbitals will produce an sp² hybrid orbital?

A) 2 p_x+1 s
B) 2 p_x+2 s
C) 2 p_x+2 p_y+2 p_z
D) 2 p_x+2 p_z+2 s
E) 2 p_x+2 p_y+2 p_z+2 s