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Difficulty: MediumJeffersonian Presidency and Territorial Expansion

"The object of your mission is to explore the Missouri river, & such principal stream of it, as, by its course & communication with the waters of the Pacific ocean, whether the Columbia, Oregan or any other river may offer the most direct & practicable water communication across this continent, for the purposes of commerce.... You will take pains to find out the names of the nations and their numbers... and to make yourself acquainted with the state of morality, religion, and information among them."

—President Thomas Jefferson, Instructions to Meriwether Lewis, 1803

Based on the excerpt, which of the following best explains a major motivation behind Jefferson's authorization of the expedition?

  1. Securing new commercial pathways and establishing trade relations with Indigenous groups to expand the nation's economic reachAnswer
  2. B
    Creating a permanent military alliance with Latin American nations to deter European colonization
  3. C
    Strengthening the power of the federal government by establishing federal judicial review over new territories
  4. D
    Enforcing a strict constructionist interpretation of the Constitution by showing that the federal government was only acting on explicit powers

Answer

Securing new commercial pathways and establishing trade relations with Indigenous groups to expand the nation's economic reach
The correct answer is correct because Jefferson's instructions directly command the explorers to locate a water route for commerce and gather data on Indigenous populations, which served the broader strategic goal of integrating the West into the American economic system.

Step-by-Step Solution

1
Analyze the provided stimulus to identify the primary objectives outlined by Thomas Jefferson.
The text explicitly states the goals are to find 'direct & practicable water communication across this continent, for the purposes of commerce' and to 'find out the names of the nations and their numbers' of Native Americans.
This establishes that commerce and diplomatic/economic engagement with Indigenous groups are the main goals of the expedition.
2
Evaluate the answer choices to find the option that aligns with the identified objectives.
The choice emphasizing commercial pathways and trade relations with Indigenous groups matches the text's explicit mention of commerce and interacting with Native nations.
This confirms the correct pedagogical alignment between the source document and the answer choice.
3
Verify that all other choices are incorrect and identify their associated misconceptions.
The other options incorrectly reference the Monroe Doctrine, judicial review, or strict constructionist ideology.
This ensures the distractors represent plausible but incorrect historical concepts.

Key Concept

Jeffersonian Expansion and Commercial Goals
Estimated Time:1m 30s
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Topics

Jeffersonian Presidency and Territorial Expansion

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