Which among the following orbitals form Delta $(\delta)$ molecular orbitals?

Which among the following orbitals form Delta $(\delta)$ molecular orbitals?
  1. $\mathrm{d}_{\mathrm{xy}}$ and $\mathrm{d}_{\mathrm{yz}}$ orbitals
  2. $\mathrm{d}_{z^{2}}$ and $\mathrm{d}_{\mathrm{x}^{2}-\mathrm{y}^{2}}$ orbitals
  3. $\mathrm{d}_{\mathrm{yz}}$ and $\mathrm{d}_{\mathrm{x}^{2}-\mathrm{y}^{2}}$ orbitals
  4. $\mathrm{d}_{\mathrm{xy}}$ and $\mathrm{d}_{\mathrm{x}^{2}-\mathrm{y}^{2}}$ orbitals

Asked in: MHT CET 2020 (12 Oct Shift 2)

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