Which accurately describes a letter written during the time a historical event occurred? a. effective secondary source document b. too biased for historical evidence c. too focused for historical evidence d. unreliable narrative source e. useful primary source document

"Useful primary source document" is the one among the following choices given in the question that accurately describes a letter written during the time a historical event occurred. The correct option among all the options that are given in the question is the last option or option "e". I hope the answer helped you.