D.so that the guard would follow its commanders and prevent violence.
Explanation:
The Supreme Court’s ruling to desegregate public schools in the country in Brown v. Board (1954) case did not go all smoothly all over the country.
The whites from the South were against the desegregation order and started a campaign called 'Massive Resistance' to oppose the court's ruling.
In Arkansas, crowd of white citizens and troops from the Arkansas National Guard stopped a group of black students from entering the school.
However, President Eisenhower federalized and placed the Arkansas National Guard under Army command so that the guard would follow its commanders and prevent violence.
The Arkansas National Guard was no longer placed in the hands of the state governor.