In comparing Lewis and Clark's expedition with Zebulon Pike's expedition, the best sentence is:
Both expeditions provided the United States valuable information about the trans-Mississippi west.
Explanation:
1. This sentence highlights the key similarity between the two expeditions, emphasizing that both Lewis and Clark's expedition and Zebulon Pike's expedition contributed valuable information about the trans-Mississippi west region.
2. It focuses on the common outcome of both expeditions, which was to gather significant knowledge that was beneficial to the United States.
3. By choosing this option, you are highlighting a crucial aspect of both explorations and showcasing their importance in expanding the understanding of the western territories of the United States.