Cold war comming to an end
Answer:
Conflicting claims to the Ohio River Valley had sparked the French and Indian War. French claims to this land also had prevented colonists from moving west. That barrier was now removed.
Explanation:
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The correct answer is technology.
The Progressive Era was one in which several Progressive presidents implemented changes that would shape the government and America in general. For example, social welfare programs started to develop during this time. This meant that the government implemented laws and policies that would help citizens who work out of work, injured/disabled, or had little income. Along with this, Progressives also increased the size of the government. This included the implementation of the 16th amendment which allowed for federal income taxes to be collected.

The main reason was the lack of money .
so here your answer is
B. objection to the inability of the government to respond to economic crisis
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