Additional information would be helpful for analyzing this source and its message are-
What is a documentary?
A documentary is a film that uses facts from actual documents and reality to tell a nonfiction story to provide deep knowledge about the subject. It is prepared to educate people about the event that took place.
To analyze the source of information it is essential to find the motivation for creating the source which helps to understand the objective of the documentary.
The identity of the creator of the source is required to validate the credentials. The evidence included in the source is required to present as proof.
Therefore, options B, C, and D are appropriate.
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