Answer:
B . to describe the events that led to the creation of the Black Lives Matter movement
Explanation:
Information about protests in 1992 and 1997 in the U.S. were included to describe the events that led to the creation of the Black Lives Matter movement.
The protest of 1992 was against the police brutality where four white police officers were recorded, beating of black motorist Rodney King and the protest of 1997, Million Woman March was against the racial discrimination between African American women and White American women in the society.
Both the events shows the discrimination between black and white Americans from a very long time that led to the creation of the Black Lives Matter movement.
Hence, the correct option is "B".