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Two centuries ago, Meriwether Lewis and William Clark left St. Louis to explore the new lands acquired in the Louisiana Purchase. They made that journey in the spirit of discovery, to learn the potential of vast new territory and to chart a way for others to follow. America has ventured forth into space for the same reasons. We have undertaken space travel because the desire to explore and understand is part of our character.

And that quest has brought tangible benefits that improve our lives in countless ways. The exploration of space has led to advances in weather forecasting, in communications, in computing, search and rescue technology, robotics, and electronics. Our investment in space exploration helped to create our satellite telecommunications network and the Global Positioning System.
Medical technologies that help prolong life, such as the imaging processing used in CAT scanners and MRI machines, trace their origins to technology engineered for the use in space....
Yet for all these successes, much remains for us to explore and to learn. In the past 30 years, no human being has set foot on another world or ventured farther upward into space than 386 miles, roughly the distance from Washington, DC, to Boston, Massachusetts. America has not developed a new vehicle to advance human exploration in space in nearly a quarter-century. It is time for America to take the next steps. Select the two claims that most fully develop the speaker's argument in the passage.
1. America "ventured forth into space for the same reasons" as the explorers Lewis and Clark.
(Paragraph 1)
2. Americans undertook exploring space "because the desire to explore and understand is part of our character." (Paragraph 1)
3. Exploring space "brought tangible benefits that improve our lives in countless ways."
(Paragraph 2)
4. Despite the successes brought by exploring space, "much remains for us to explore and to learn." (Paragraph 3)
5. After nearly a quarter-century, "It is time for America to take the next steps" with space travel. (Paragraph 3)

1 answer

The two claims that most fully develop the speaker's argument in the passage are:

  1. Despite the successes brought by exploring space, "much remains for us to explore and to learn." (Paragraph 3)

  2. After nearly a quarter-century, "It is time for America to take the next steps" with space travel. (Paragraph 3)

These claims emphasize the need for continued exploration and the urgency to advance in space travel, which aligns with the overall argument of the passage advocating for further space exploration efforts.