Which of the following linear combination of atomic orbitals will lead to formation of molecular orbitals in homonuclear diatomic molecules…

Which of the following linear combination of atomic orbitals will lead to formation of molecular orbitals in homonuclear diatomic molecules [internuclear axis in $\displaystyle z$ - direction] ? A. $\displaystyle 2 \mathrm{p}_{\mathrm{z}}$ and $\displaystyle 2 \mathrm{p}_{\mathrm{x}}$ B. $\displaystyle 2$ s and $\displaystyle 2 \mathrm{p}_{\mathrm{x}}$ C. $\displaystyle 3 \mathrm{~d}_{\mathrm{xy}}$ and $\displaystyle 3 \mathrm{~d}_{x^2-y^2}$ D. $\displaystyle 2$ s and $\displaystyle 2 \mathrm{p}_{\mathrm{z}}$ E. $\displaystyle 2 \mathrm{p}_{\mathrm{z}}$ and $\displaystyle 3 \mathrm{~d}_{\mathrm{x}^2-\mathrm{y}^2}$ Choose the correct answer from the options given below: