To achieve a racial balance in American public schools, federal
courts ordered.
a. school district lines redrawn
b. segregated schools closed
c. student busing
d. teacher reassignments

c. student busing

Explanation:

Due to housing inequality and the segregation of neighborhoods, students did not receive equal educational opportunities and public schools were separated by race.

In order to right this and racially integrate the schools, students began to be assigned and transported to different schools within or outside of their local school district.

The desegregation busing of students was upheld by the Supreme Court's decision in 1954, in the case of Swann v. Charlotte-Mecklenburg Board of Education.

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explanation:

zheng he was a chinese explorer who lead seven great voyages on behalf of the chinese emperor. his seven total voyages were diplomatic, military, and trading ventures, and lasted from 1405 – 1433. however, most historians agree their main purpose was to promote the glory of ming dynasty china.

explanation: