Which of the following was not an effect of 19th century progress on the city of manchester, england?

C is correct, overcrowding created slums of dead and dying people.

These are the choices

a) The city was better able to prevent diseases from spreading.

b) The population more than doubled within 30 years.

c) Overcrowding created slums of dead and dying people.

d)  The city became a center of industrial life.

a

explanation:

in the 1950s, country music came into its own before rock-n-roll took off in the 60s while jazz and classical music continued to innovate