Answer:
The correct answers are "William Clark" and "Meriwether Lewis".
Step-by-step explanation:
Meriwether Lewis was asked to work as a private secretary by President Thomas Jefferson in 1801. However, President Thomas Jefferson later offered him a better job by asking him to explore the new territory acquired through the Louisiana Purchase. Lewis accepted and the President allowed him to take his friend William Clark with him into the exploration. The journey of exploration is famously known as the Lewis and Clark Expedition.