Final answer:
The word 'twerk' was officially added to the Oxford English Dictionary in 2013. So, the correct option is: B. 2013.
Step-by-step explanation:
The word twerk was added to the Oxford English Dictionary in 2013. Twerking is a type of dance that involves a person, usually a woman, shaking their hips in an up and down bouncing motion, causing them to shake, 'wobble' and 'jiggle.' To answer the multiple-choice question provided, the correct option is: B. 2013.
While the dance move had been around for several years, its prevalence in popular culture and media led lexicographers at the OED to include 'twerk' as a new entry in their dictionary updates.