The correct answer for the question that is being presented above is this one: "C.) sequence of events." The sky darkened, and thick clouds rolled in. They covered the sky like a wool blanket, and a cool wind picked up. Soon sporadic flashes lit the sky and thunder cracked after each strike. Trees bent with the wind, and droplets of rain tapped on our roof. It wasn’t long before those droplets turned into a torrential downpour.
The first box is a dangling modifier. The second is a clause. The last is a phrase. (Answers going from top to bottom) :)
A singular non is the opposite of a plural noun. A plural noun names more than one person, place, thing, or idea. A plural noun includes things like "children," "books," "libraries," or "liberties." A singular noun would be "child," "book," "library," and "liberty." Singular nouns only name one person, place, thing, or idea. Hope this helps.