Thomas Jefferson had several objectives for the Lewis and Clark expedition, including:
- Gaining knowledge of the region’s geography
- Documenting a safe route to the Pacific Ocean
- Learning about the territory’s Native Americans
While the expedition was intended to explore and document new territories, it was not primarily focused on forcing Native Americans from their land, although the encroachment of settlers would have that effect later on.
Therefore, the correct responses would be:
- Gaining knowledge of the region’s geography
- Documenting a safe route to the Pacific Ocean
- Learning about the territory’s Native Americans