Questions 18 to 20 are based on the following passage, At the end of the passage, you will be given15 seconds to answer the questions. Now listen to the passage. What can be inferred about the views of the historians
A.They are not influenced by government policy. B.They are opinions that have no basis in fact. C.They are affected by the conditions of the time in which they are written. D.They would be more accurate if historians followed one ideology.