The correct answer is B. Using multiple sources of information to draw conclusions.
Step-by-step explanation:
A discussion is a type of communicational situation in which two or more participants share ideas about a topic or issue. In this, it is common to use different techniques to achieve the purpose of the discussion and also argue in favor or against one point. In the case of the technique "using multiple sources of information to draw conclusions" this technique is about using different types of sources related to the topic being discussed, for example a book, a report, a website, an article, etc and based on the information in them drawing conclusions or supporting a point. This is the technique presented in the statement because this participant has use three sources (a movie, June in winter and a newspapers review) analyze them and then conclude the movie has inconsistencies based on other materials.