Final answer:
In George Orwell's "Animal Farm," the statement "A riot breaks out in a town" reflects the theme of Social Unrest and Rebellion, aligned with historical and political perspectives on social change and the cycle of power shifts following revolutions.
Step-by-step explanation:
In George Orwell's "Animal Farm," the theme reflected in the statement: "A riot breaks out in a town" is b) Social Unrest and Rebellion. This novel is a political allegory that reflects on events leading up to the Russian Revolution of 1917 and then on into the Stalinist era of the Soviet Union. Orwell's work is deeply embedded in the concepts of political philosophy and the critiques of social inequality, where we see the animals overthrow their human farmer, hoping to create a society where the animals can be equal, free, and happy. However, the subsequent emergence of a new ruling class among the animals reflects the developments that can happen after a revolution, where new forms of government and control might betray the original ideals of the revolt. The concept aligns with the historical insights from the works of political philosophers like Marx, Rousseau, and others who reflected on the rise of socialism, changes in social structures, and the quest for liberty and equality.