Primary sources are sources that are directly from the time that an event took place that can give first hand knowledge about an event or occurrence. These include newspaper articles, video footage, or a personal account from an individual who was there when a historical event took place. Whereas a secondary source is a step removed in that the author is analyzing primary sources or is writing from a position where they don't possess direct knowledge to an event but are using historical evidence to provide a perspective on a particular issue or historical event.
D. Over burdened bureaucracy
Words meaning failure are connected to the words meaning black--he is explaining how even the language is set to expect failure from blacks.
This quote is from Great Debaters and Tolson is speaking to the students that didn't make the debate team. He lists words meaning failure that have a root word connected to the word "Negro". He follows by stating they should make their own dictionary--meaning they need to not let expectations stop them from being successful.