Can Two Propositions Be Equivalent If Their Subjects Do Not

Can two propositions be equivalent if their subjects do not consist of the same words?

A) No, because they wouldn't be about the same topic.
B) No, because the subjects must be identical.
C) Yes, but only if the predicates are worded identically.
D) Yes, but only if the predicates are also worded differently from each other.
E) Yes, because their subjects could have identical meanings.