A suitable topic sentence for this paragraph is, Lightning
rods are a necessity for radio towers and skyscrapers.
Answer: Option A.
Step-by-step explanation:
The topic sentence of any passage discusses the main idea of the passage. The excerpt provided here is about the difficulties forest rangers and most people faced during thunderstorm and it discusses the lightening rods.
So the most appropriate title sentence for this passage would be, ‘Lightning
rods are a necessity for radio towers and skyscrapers.’ This title explains that lightning rods are not only essential but they’re also necessary. This topic will further gives the reader an idea that the paragraph will contain the necessary information has to why lightning doors are necessary for skyscrapers and radio towers.