Answer:
1. People were poor and had hard lives.
People did not like the government and were tired of WW1
2. Alliances among European nations.
The conclusion drawn from the graph about the demand for books is that its has grew significantly over the centuries.
<h3>What is Demand?</h3>
Demand refers to the willingness to buy a product at a particular amount at a given period of time/
For the graph, the conclusion drawn from therein about the demand for books is that its has grew significantly over the centuries.
Therefore, the Option C is correct.
Read more about Demand
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