Final answer:
Option A is the correct answer. The spread of capitalism in the 19th century led to increased migration to cities as factories offered new work opportunities, not necessarily in skilled trades, but rather in industrial labor.
Step-by-step explanation:
As a result of the spread of capitalism in the 19th century, European society saw a number of changes. One significant change was the increase in migration to cities, as people sought work in the growing number of factories rather than skilled trades. Additionally, this period saw the rise of a new professional middle class, the bourgeoisie, who played a crucial role in the ongoing transformations. While women did join the workforce, they did not do so at the same rate as men during this time. Also, wealth did not become more evenly distributed; instead, the gap between the rich and the poor often widened.
Therefore, the correct answer to the student's question is A: Migration to cities increased as more people sought work in skilled trades.