Answer:
4. Primary sources give firsthand accounts of events, which can provide important details to a researcher.
Step-by-step explanation:
It is important to use primary sources when conducting historical research because they offer firsthand accounts or direct evidence from the time period being studied. These sources include documents, letters, diaries, photographs, interviews, speeches, artifacts, and other materials created by individuals who witnessed or participated in the events being researched. By examining primary sources, researchers can gain insights into the context, perspectives, and specific details of historical events or time periods, which can contribute to a more accurate and nuanced understanding of the past.