We can actually deduce here that the two transitional expressions that can indicate a summary or conclusion are:
In writing, transition refers to the way a writer moves from one idea to another in order to maintain the flow of the story or narration. Words like hence, overall, immediately, suddenly, initially, etc are examples of transition words.
So, we can see here that "hence" and "overall" are correct.
Learn more about transition on https://brainly.com/question/1101400
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