I think it’s c. i mean im 95% sure
B-Before C- Common E-Era
Secular: adjective: denoting attitudes, activities,or other things that have no religious or spiritual basis.
Answer:
Sacagawea was a Lemhi Shoshone woman who helped the Lewis and Clark Expedition in achieving their chartered mission objectives by exploring the Louisiana Territory. Sacagawea traveled with the expedition thousands of miles from North Dakota to the Pacific Ocean.
Explanation: