Which source would be most appropriate for researching the question "How does social media affect personal relationships?" A.) a blog post discussing the blogger's large number of followers

B.) a journal article by a psychologist who is studying social media

C.) a social media site showing the process of connecting to other users

D.) a wiki page discussing appropriate interactions on the internet

B.                                                      A articular has more facts so its proves what the answer is.                          

Scientists found that the genes of the ancient American dogs were similar to the genes of dogs born in Europe and Asia. Scientists also concluded that every breed of dog, from English setters to Labrador retrievers, descended from wolves that lived in Europe and Asia and migrated to North and South America.