In order for Churchill to write his book, he would have had to study various reports about the occurrence, describing the assassination of the Archduke Franz Ferdinand. Churchill would have had to focus on reports and spoken words from both Gavrilo Princip at his trial and from the crowd who witnessed the event to acquire an accurate description for his book. .
The photograph, source 1A, is a secondary source. This is because the Archduke and his wife entered the car twice. The first time, a bomb was thrown onto the car, which bounced off and subsequently the second time, the Archduke was shot. Therefore, since the photograph does not show the assassination it is a secondary source. The photograph is also a secondary source because both the Archduke and his wife are not in the car, where they would be assassinated. .
c.) Primary sources can be both misleading and biased due to various matters. The most important fact, which can determine this, is the person's view and opinion on the event. Their position, if they are a politician or a farmer for example or if they favour one side or the other are also important facts. .
Secondary source can be both misleading and biased as primary sources due to various factors. Since, the person who wrote the extract was not there when the event took place, they would not have a clear view of what took place. The sources, which they would have used for their extract, might not have been clear and they might have changed it to suite their explanation. A secondary source can also be misleading, depending upon which side, opinion and position the person has who writes the report. .
Sources 1B and 1C agree with each other because they tell of the same event. Even though two different people wrote the sources they tell of the same occurrence with similar details. An example of this is that Winston Churchill mentions that Gavrilo fired two shots, which corresponds to Gavrilo's words, which he spoke at the trial.