Answer:
B. The Treaty of Versailles
Explanation:
Hope this helped you!!
(p.s. I'm sorry if wrong, but I'm like 98% sure it's right)
The answer is European nationalism
There are nine steps in the scientific method. Observe, and Hypothesise are two of the first steps.
People were searching for success and hoped to create lives of their own. They believed that moving West was the key to a new and better life.