The correct answer is:
a) Men worked long hours outside the home in the city instead of working shorter days on a family farm.
During the Industrial Revolution, working-class men often shifted from shorter agricultural workdays on family farms to longer hours in factories. The other options (b, c, and d) are not accurate reflections of the changes faced by working-class people during this period. Women did work in urban areas, children worked in factories as well as rural settings, and men were predominantly workers in factories rather than handling both farm and factory work.