Let {D₁, D₂, D₃, ..., D_n} be the set of third-order determinants that can be made with the distinct non-zero real numbers a₁, a₂, ..., a₉. Then 

• A

  $\sum _{\mathrm{i}=1}^{\mathrm{n}} {\mathrm{D}}_{\mathrm{i}}=1$

• B

  $\sum _{\mathrm{i}=1}^{\mathrm{n}} {\mathrm{D}}_{\mathrm{i}}=0$

• C

  ${\mathrm{D}}_{\mathrm{i}}={\mathrm{D}}_{\mathrm{j}},\mathrm{\forall }\mathrm{i},\mathrm{j}$

• D

  None of these