It might be said this paragraph shows "the damages caused by the lateral blast" (option D) because the reader gets to know that it can "shoot (..) pieces of rocks", "kill by impact, burial or heat" and to "knock entire forests". Nothing about prevention or causes is mentioned not even how to avoid it
B. It makes the reader wonder how the chronometer relates to our notion of time.
In an informative or explanatory article about party planning, the conceptthat6 would be used to explain something to the reader is menu planning. The correct answer is option D. The main highlight of a party has always been the food that should be prepared and served. This includes careful planning that's why it should be explained well.