Notable american protests include those for and those against

c. equal civil rights for all citizens... the Vietnam War

Explanation:

Assuming the options are:

a. equal pay for equal work... World War I

b. a higher minimum wage... the Korean War

c. equal civil rights for all citizens... the Vietnam War

d. lower income taxes... the Cold War

The civil rights movement was a struggle for social justice that took place mainly during the 1950s and 1960s for blacks to gain equal rights under the law in the United States.

The Vietnam War, also known as the Second Indochina War, and in Vietnam as the Resistance War Against America or simply the American War, was an undeclared war in Vietnam, Laos, and Cambodia from 1 November 1955 to the fall of Saigon on 30 April 1975.

i think it's a)sparta