The correct answer is Primary sources are first-hand accounts of events or time periods in history
The research project is characterized as an action to be developed, necessary in turn, and which foresees everything that will be developed through the research, that is, in it the researcher reveals his main intentions, explains the focus, the direction that the it will guide, express his real interests and highlight the questions that prompted him to proceed this way or that.
Although there is not really information that is unbiased because when the source is a person, it is practically impossible to be 100% objective, you still have to be sure about the accuracy of the information. If the information is first handed, you can actually place it in a larger historical context and even analyze how the biased opinion tells you even more about that moment in history. Pictures and documents tend to be much more reliable than a letter of someone who heard something and is gossiping with an aunt.
