Connectives Join Other Words Together, but Do They Have Any

Multiple Choice

Connectives join other words together, but do they have any meaning of their own?

A) No, they are simply there to join other words.
B) Yes, because an entire proposition can be a connective.
C) Yes, because they can tell us how the other words are related.
D) Yes, because a connective could be the subject of a proposition.
E) Yes, because a connective could be the predicate of a proposition.