Why are eyewitness accounts important to historical research?

Eyewitness accounts can reveal details about how events actually unfolded, including unexpected causes such as chance, oversight, or mistakes. This makes B, “because events are often the result of chance, oversight, or error,” the best answer. Eyewitnesses are not infallible, so their accounts should be considered critically rather than treated as automatically reliable.

AI-written and checked against the verified answer.