Which of the following best describes slang?

Slang is best described as a form of informal language, characterized by its casual and often playful use of words and phrases that may not adhere to standard language rules. It is typically used within specific groups or communities and can evolve rapidly, reflecting current trends, cultural shifts, and the dynamic nature of language. Slang often serves to establish identity and solidarity among group members, differentiating speakers from outsiders.

In context, the other choices do not accurately represent slang. Technical terms pertain to specialized jargon used in specific fields and do not reflect the casual and evolving nature of slang. A traditional form of literature would refer to written works that follow established norms and structures, which is contrary to the spontaneous and often fleeting characteristics of slang. A refined style of writing implies careful choice of words and adherence to grammatical standards, which contrasts sharply with the informal and often non-standard nature of slang expressions.