Could There Be More Than One Proposition in Standard Form

Could there be more than one proposition in standard form that would solve the same enthymeme?

A) No, because only one proposition could have the required quality and quantity.
B) No, because only one proposition could have the required distribution.
C) Yes if we take the traditional view of existential import, but no if we take the modern view.
D) Yes if we take the modern view of existential import, but no if we take the traditional view.
E) Yes, because two propositions could be equivalent to each other.