Answer:
The correct answer is d. is as vivid in its details of personal life as that gathered.
Explanation:
For this answer, it is important to remember the subject-verb agreement, which basically means that a verb must be conjugated in order to match the subject. In this case, the subject is the historical account, so the verb must be in singular (is) and it matches the possessive pronoun (its) and the comparison is closed at the end, as that, so letter D is the correct answer.