The details from the text best support the answer to Part A are
E; “The study also could guide strategies for fighting the spread of fake news, says Paul Resnick. He works at the University of Michigan in Ann Arbor.” ( Paragraph 13)
F: “‘We’re barely starting to scratch the surface on the scientific evidence about false news, its consequences and its potential solutions.’” ( Paragraph 15)
PART A was: By studying how false news spreads on media, scientists can better understand why false news is being spread more than true news and how to prevents its distribution.
This sentence states that the study could be used to develop strategies for combating the spread of fake news. It identifies Paul Resnick as the source of this claim and provides his affiliation .