<span>B. It is taken from one solid primary source.
The method of researching is a systematic process of gathering, integrating, interpreting and presenting a collected data ruled out by the reliability and validity of the sources and elicited evidences.
A good topic should have come from a credible and solid primary source so that the study could be backed up from the former claims. </span>
B. He is embarrassed<span>because the Happy Medium laughs at what she sees</span>