The answer is D) 8 hr work day
That would be choice C. the index fossils.
I hope this helps you! :)
<em>On August 14th, 1935, the Social Security Act established a system of old-age benefits for workers, benefits for victims of industrial accidents, unemployment insurance, aid for dependent mothers and children, the blind, and the physically handicapped.</em>
Answer:
B. It represents the main route for settlers moving into the Oregon Territory.
Explanation:
i believe that B is your best answer, as it looks like it is showing the Oregon trail, which led from Independence to Oregon.