Economic inequality is the unequal distribution of the incomes and opportunities within the socioeconomical groups. For example, in every urbanized city, you can see homeless people amd poverty just a few meters from the skyscrapers. It is a common problem today, and it concerns almost every government.
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<h2>C. Social desirability bias</h2>
At the outbreak of World War I, the Allies had very good strategic plans prepared on how they would counter their enemy. Moreover, they had a thriving industrial economy and knew beforehand war was brewing up (although Germany at the time was capable of building immense amounts of required goods).