Final answer:
The article does not include information on 'How the slang word square came to have different meanings as different groups adopted it'. It discusses language evolution, the adoption of tech terms, dialects, and the informal language used by youth, but not the specific history of the word 'square'.
Step-by-step explanation:
The information not included in the article pertains to D. How the slang word square came to have different meanings as different groups adopted it. Although the article discusses the evolution of language and how new words and even dialects form and change over time, it does not provide details on the history or the evolution of the word 'square', or how it came to receive its various meanings through adoption by different groups.
Young people's use of slang helps them create a sense of identity separate from older generations. The use of emoji among students is highlighted as an example of how younger individuals adapt language use to express belonging to a certain group, and how they potentially change language over time. The article also covers how various groups, including those based on region or ethnicity, have their own dialects or variations of standard English, with some of these variations having implications in professional settings. It highlights how new technology terms like e-mail and the Internet have been quickly integrated into everyday language.