Look at this nineteenth-century illustration of London. Which explanation best relates this illustration to changes in Britain in the 1800s? A. Factory workers in cities lost their livelihood because of the lack of housing. B. Industrialization narrowed the income gap between landowners and workers. C. The migration of workers from rural to urban areas resulted in overcrowded cities. D. The spread of railways allowed farmers to sell produce far from where it was grown.

C. The migration of workers from rural to urban areas resulted in overcrowded cities.

Explanation:

C is the most valid option. The reason is that 19th century London was an overcrowded, unsanitary place, because of the large migration of rural workers to the city, in a very short period of time.

Authorities were not able to keep up with the migration flow, or were not interested in providing the working class with appropriate housing and living conditions, which caused the overcrowdedness.