Respuesta :
The Pony Express crossed the continent from Missouri to the Pacific correctly summarizes the point of the introductory paragraph.
The correct answer is "The Pony Express delivered messages on horseback through many areas". The introductory paragraph is a specialty paragraph that introduces the reader to an essay. An introductory paragraph contains a topic sentence, which defines the topic; the thesis sentence, which defines the writer's point of view; and the outline sentence, which describes the main topic.