Final answer:
The correct order from broadest to narrowest is: Famous racehorses of the twentieth century, The life of the famous racehorse Seabiscuit, Seabiscuit's win at Pimlico Race Course in 1938.
Step-by-step explanation:
To arrange the topics from the broadest to the narrowest, you should start with the most general subject and move towards the most specific. Here's the correct order:
- Famous racehorses of the twentieth century
- The life of the famous racehorse Seabiscuit
- Seabiscuit's win at Pimlico Race Course in 1938
The broadest category is Famous racehorses of the twentieth century, as it encompasses all famous racehorses during that time period. One specific example from this category is the famous racehorse Seabiscuit, making The life of the famous racehorse Seabiscuit the next broadest topic. The narrowest topic is a specific event, Seabiscuit's win at Pimlico Race Course in 1938, which is a single moment in Seabiscuit's life.
Therefore, the correct answer is (B) Famous racehorses of the twentieth century, The life of the famous racehorse Seabiscuit, Seabiscuit's win at Pimlico Race Course in 1938, Broader.