Final answer:
The Kerner Commission, appointed by President Johnson, studied the case of urban violence and attributed much of the problem to white racism.
Step-by-step explanation:
The correct answer to the question is D) Kerner Commission. The Kerner Commission, officially known as the National Advisory Commission on Civil Disorders, was appointed by President Johnson to study the case of urban violence in the United States. Their findings, published in a 200,000-word report, concluded that white racism was a significant contributing factor to the problem. The commission recommended various measures to address the issue, including the construction of new housing, job creation, and an end to de facto segregation in order to eliminate ghetto environments.