How did the industrial revolution change working class families

Families that worked in the conutryside moved to the major cities. They were driven by the need to generate money, it became evident that working class families could not make a good income with one wage earner, women and even children ended up working equally long hours.

your list doesn't mention any of them at all.

and what does "these" mean anyway ?

the right answer for the question that is being asked and shown above is that: "their policy of "divide and rule" pitted political groups against each other to keep any one group from becoming too powerful.  " the  participant in european imperialism is being described below is that  their policy of "divide and rule" pitted political groups against each other to keep any one group from becoming too powerful.