As per the question, 'internal preview' is the kind of connective that have been exemplified through the given example as it aims to instruct the audience regarding about the upcoming ideas('what can be done by our state, by our local communities, and by each of us in this room') that are going to be addressed. The direction to audience about the upcoming ideas help establish the transition from one idea to another and implies that these are the concerns that the speaker would address next. Thus, <u>'internal preview'</u> is the correct answer.
