What is one advantage a secondary source has over a primary source? a a secondary source always presents information objectively b a secondary source provides an interpretation from an eyewitness to an event c a secondary source is free of bias d a secondary source summarizes complex subjects by synthesizing multiple sources

The correct answer is D. A secondary source summarizes complex subjects by synthesizing multiple sources

Explanation:

A secondary source includes sources such as articles, books or analyses that use the primary sources as the main tool. This implies different from primary sources, secondary ones are not written by someone who experienced or witnessed the event studied but usually by experts in the subject. Additionally, secondary sources commonly gather and summarize information from multiple primary sources and therefore different from primary sources they offer a holistic and complex perspective of the subject studied. This means, one advantage or positive aspect of a secondary source is that this summarizes complex subjects through multiple sources (Option D). Although this as primary sources can still be biased or subjective.

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