Which of the following describes a disadvantage secondary sources have compared to primary sources

There's no answer choices listed, so here's the best I can do:

Secondary sources come from people who have only read or heard about an event, so there is a possibility that they don't know the full story or they will mix in lies. With a primary source, you will get the full story and the truth.

Hope I'm not too late, and I hope this helps :)

The answer to the question is a.