Answer: D) The family members are devoted to their work.
Explanation: The generalization about the Track family is the family members are devoted to their work.
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After World War I, new states were formed, new movements were encouraged, in this way cultural, political changes were happened.
<h3>What was World War I?</h3>
World War I started in 1914. After World War I, in Europe, new political and constitutional changes occur in ten countries.
Thus, After World War I, new states were formed, new movements were encouraged, in this way cultural, political changes were happened.
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