It's a very long sentence with a lot of information, but it is still only a simple sentence (option b): it has only one verb (taught). In order to qualify as a complex or compound-complex sentence, it would have to have at least 2 phrases, each with a different verb.
Answer:
Racial Segregation in public schools violated the fourteenth amendment
Explanation:
This is true; this number is the estimate from the years 2003- 2010. About 7 Million of these people are of Micronesian descent, including from Papua Guinea and Fiji..