Respuesta :
They are likely to be biased is the true statement about using secondary sources.
option: A
Explanation:
Secondary sources are considered to be the interpretations and evidence that we get from primary sources. These are basically are not even evidence, these are rather comments and discussion on the evidence on certain concepts or believes. Secondary sources come to picture when it is written after a fact with an advantage of hindsight. Essays on reviews, bibliographies, biographical works, commentaries, criticisms are some of the examples of the secondary sources.