This is true. The word that is used in the UN charter to refer to them is "recommendations', and they are in fact not binding, but more like suggestions.
In 1896, Homer Plessy broke Louisiana state law that required all African Americans to sit in a certain train car called the Jim Crow boxcar of the train. Plessy argued that <span>Louisiana law violated his constitutional right for "equal protection".</span>
<span>The apartheid system in South Africa was an example of legal discrimination is true.
so your answer is </span>a. true
hope that helps