|Question 14Verbal

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In order to identify research trends, Shirley Ann Williams et al, reviewed a collection of studies of the social media website Twitter, such as the 2011 paper by Celik et al, titled "Learning Semantic Relationships between Entities in Twitter." Williams's team searched for the term "Twitter" on the Scopus and Web of Science databases and found that, though most papers returned by the search did in fact focus on the social media platform, a few discussed unrelated subjects such as sounds made by tractor engines. One reasonable explanation for this result is that it occurred because____
Which choice most logically completes the text?
a group of researchers had an extensive discussion on Twitter about the design of tractor engines.
A
most of the papers in the Scopus and Web of Science databases do not discuss automotive engines or social media websites.
B
the word "twitter" may not always refer to a social media website, but to other subjects such as noises made by machines.
C
academics who are active on social networks are likely to announce their recent publications on Twitter.
D