George: Throughout the 1980s and early 1990s, hardly anyone learned ballroom dancing. Why is it that a large number ballroom dancing lessons?
Boris: It's because, beginning in 1995, many people learned the merengue and several related ballroom dances. Because these dances are so are now catching on.
What this question is testing
Your task
Describe the reasoning error the argument actually commits.
Common trap
Answers that name a real logical flaw the argument doesn't actually make.
Winning move
Articulate the gap in the reasoning yourself, then match it to the choice that describes that gap.
Reading along? Open the full official question in LawHub — we show a fragment here and keep the reasoning in our own words.