The bubonic plague had a significant impact on labor and the role of peasants. One of the most notable outcomes was the increased demand for labor, as the population decreased dramatically due to the disease. This led to a labor shortage, which granted peasants more leverage in negotiating wages and terms of labor.
Considering the options provided, the most accurate answer would be:
D. increased social mobility
After the plague, many peasants were able to demand higher wages and better working conditions, leading to improved social mobility compared to the rigid class structures that had existed prior to the plague.