Which of these were important to the survival of the members of the Lewis and Clark expedition?
Select one:
a. mountain men
b. the U. S. military
c. American Indians
d. settlers traveling west

Correct answer is c. American Indians.

Explanation:

The only correct answer among the mentioned ones is American Indians.

Namely, during the expedition they had no help of US military and the settlers as it was a territory in which practically no one step foot, except the Natives.

Therefore, their greatest advantage was the inclusion of a Native Sacagawea, who was leading them and helping in the communication with the Indians.

answer; the above statement is (false);