Read the paragraph from the introduction (paragraphs 1-4)
from january 2015 to june 2016. researchers asked students across
12 states to complete 56 tasks. these tasks measured the students
ability to judge the credibility of online information. researchers
analyzed 7,804 responses from students located in a variety of
schools, including those in lower-resourced classrooms in los angeles
and wealthier suburbs outside minneapolis.
why does the author include this paragraph in the article?
(a)
to explain why there was a difference in results between students of different
backgrounds
(b)
to highlight the timeline in which the survey started and ended
(c)
to describe the methodology and scope of the survey
to criticize the ways that researchers collected data