Correct answer: A. Industrial growth also created social crisis
Explanation: Direct answer: Option A, industrial growth also created social crisis. Industrialisation increased factory production and helped cities grow, but its benefits were not shared equally. Many workers lived in crowded housing, faced poor sanitation, disease, long working hours, low wages and insecure employment. Thus industrial progress could exist together with poverty and suffering. Option A is correct because these conditions show the social cost or crisis that accompanied industrial development. Option B, complete prosperity of workers, is wrong because the question refers to poverty and hardship, not universal comfort. Option C, absence of factories, is wrong because poor industrial-town conditions developed precisely where factories and industries were present. Option D, the king becoming a worker, is unrelated and does not explain urban living conditions. Exam cue: when discussing industrialisation, mention both increased production and workers’ difficult lives.