The 1960 sit-in at greensboro, north carolina: a. sparked similar successful demonstrations throughout the south. b. ended in a riot with ten injured. c. did not end with integration of the woolworth’s lunch counter. d. was staged in one of the most notoriously racist cities of the south, where angry residents remained deeply committed to the racial divide. e. encountered a harsh reaction from greensboro’s police force, which jailed the four ringleaders.

A. Sparked similar successful demonstrations throughout the South is the correct answer.

Explanation:

The Greensboro sit-in was a civil rights protest by the African-American students who were segregated at Woolworth's lunch counter in Greensboro. The African- Americans were denied the service so they refused to leave. This movement spread to the college towns in southern America and protesters were arrested for trespassing and disturbing the peace. Their protests had a lasting impact and forced the Woolworth's to change their segregationist policies.

b.

jim crow laws were enacted in northern states.

the name of the theory is landmass theory.