The main purpose of the route seen here was to

a) make new roads in a new land.

b) indians relocate to western lands.

c) explore the newly-acquired u. s territory.

d) make routes to newly discovered gold in california.

 C)explore the newly-acquired U.S territory.

Explanation: The main purpose of the Route seen above was to explore new US territory. When Lewis & Clark were sent to explore the Louisiana Territory, little was known about the area, so making roads or finding gold was not a practical consideration.

my cultural heritage consists of irish, german, native american, and others.