In which sentence is the underlined group of words a prepositional phrase acting as an adverb?

In what critical way is the protagonist dynamic in "there's a man in the habit of hitting me on the head with an umbrella"?

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Ineed ideas for this essay something easy that i can do does anyone have any ideas on what i should write on for this 100 points ! write a procedural essay with media that is 1 ½–2 pages in length. clearly state your topic, and include all steps necessary to complete the procedure. you will submit your prewriting and planning documents along with your essay.