The answer is D. The country will fall apart without it.
C. A heavy rainstorm.
The text shows indication of a storm arriving. “Clouds arrived” are an indicator that clouds quickly appeared. “Lightning flashed” tells us these are storm clouds. It makes sense that next it would start raining, making the next event a heavy rainstorm.
The middle of the sentence or after it states what's happing in the story your reading
In any story, or a specific one?In general, a protagonist is the main character, the person who takes the center-stage in a story. For example, Katniss in the Hunger Games, or Holden Caulfield in the Catcher in the Rye