Which sequence best explains the social intensity of the subsistence crisis?

Poor harvest causes grain shortage then costly bread then reduced purchasing power of the poor

The governing concept is the subsistence crisis, in which food supply, prices, wages, and purchasing power interact. A poor harvest reduces the quantity of grain available. Scarcity pushes grain and bread prices upward, while wages do not necessarily rise at the same rate. Poor families must spend a larger share of their income on food, so their purchasing power falls and hunger, insecurity, and unrest intensify. Hence option A presents the correct causal sequence. The other options contain reversed or implausible relationships: cheap bread does not create this crisis, peasants did not suddenly receive privileges, and stable prices cannot explain worsening subsistence.

This is a Class 9 History question. Chapter: The French Revolution. Topic: French Society During the Late Eighteenth Century.