The only source that will not achieve the writer's purpose is; E: a video from a marketing research firm that promotes services offered to environmental groups, such as developing brand images that will increase their social media presence
From the argument in the second paragraph gotten online as will be seen in the brainly link attached, we can say that the source that would be most appropriate for researching the question on how social media affects personal relationships is a journal article by a psychologist who is studying social media.
We observe that social media is useful in gathering more awareness about environmental groups are not being used by them.
The correct answer is option E.
The missing options are;
A: a report from a major wildlife conservation organization that shows a significant increase in the number of its social media followers who engaged with the organization’s online content
B: a blog post on a university environmental club’s Web site about how the club used social media to organize an awareness event with partners in eleven countries
C: an article published in a scholarly journal that details how a research team used social media to recruit volunteers to assist with data collection on bird habitats
D: a newspaper article about a community garden club that distributed several thousand pollinator-friendly seed packets after a video of the club members singing about bees went viral
E: a video from a marketing research firm that promotes services offered to environmental groups, such as developing brand images that will increase their social media presence
Read more about the writer's purpose at; https://brainly.com/question/21536513