Sharpness or keenness of thought, vision, or hearing.
Answer:
John Richard ("Packed" or "J.R.") Simplot (/ˈsɪmplɒt/; January 4, 1909 – May 25, 2008) was an American entrepreneur and businessman best known as the founder of the J. R. Simplot Company, a Soda Springs, Idaho based agricultural supplier specializing in potato products.
More people use it as an adverb but can also be a adjective
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