Respuesta :
Normally, a historical source is usually considered credible if the author has provided accurate information in the past and the text has been unchallenged by other historians.
What is a historical source?
This refers to the original source that contains the most important historical information and these sources are something that inform us about history at the most basic level and also used as clues in order to study history.
Hence, the a historical source is reliable when its provides a thorough, well-reasoned theory, argument, discussion, etc. based on strong evidence.
Thus, the historical source is usually considered credible if the author has provided accurate information in the past and the text has been unchallenged by other historians.
Therefore, the Option A & D is correct.
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Answer: the answer is A
Explanation:the author has provided accurate information thruthfully