I believe it is the last option... "Its political system cannot be easily changed.
To cause more harm to people
From the graph that we have here, the event that is responsible for this change is A product becomes less popular and fewer customers purchase it.
The reason this is the answer is because when e look at the graph closely, we can see that only demand fell from 50 to 40. There was no change in price, it remained at 15 dollars.
A fall in demand even at the same price that a good was sold previously shows us that less people are buying the product. This could be due to changing consumer preference.
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<em>How was the decision in Plessy v. Ferguson inconsistent with reality? A fire in an New York clothes factory that had bad safety conditions (the doors were locked and they only had a few fire escapes) The outcome was 150 people losing their life (Mostly young woman). (Usually because of jobs.</em>