What inference about the know-knowing is supported by the excerpt above

the answer would be 50's sitcoms reinforced traditional roles for men and women.

the second significant cause of the great migration was the desire of black southerners to escape segregation, known euphemistically as jim crow. rural african american southerners believed that segregation - and racism and prejudice against blacks - was significantly less intense in the north.

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