Why did common people's suffering increase during the Civil War?

Correct answer: Because of war violence and food crisis

A civil war damages ordinary life in several connected ways. Fighting destroys homes, transport, farms, and local supplies, while armies may take food, animals, fuel, or labour. Blockades and disrupted production can create shortages, and violence makes travel and personal safety uncertain. In the Russian Civil War, these pressures affected workers, peasants, and families, so suffering increased even when people were not direct combatants.

Option A is correct because it identifies the two central pressures named by the lesson: war violence and a food crisis. Unlimited prosperity would reduce suffering rather than cause it. Festivals and foreign travel are unrelated to the widespread insecurity and shortages of civil-war conditions. The question asks about common people, so the answer should focus on hunger, insecurity, displacement, and disruption of ordinary economic life. Thus, A follows clearly.