Respuesta :
Answer:
Formal, informal, formal, informal, are the correct answers.
Explanation:
Formal language is defined as the one that is used when natural language seems to be unacceptable, some examples are essays, newspapers, and academic papers or books. Options A and C use formal expressions and words such as "culturally important" or "significant."
On the other hand, informal language is the one that can be found in the natural speech or conversation; in other words, it refers to the use of "low" language or dialect. In option B and D we can find expressions such as "nasty situation" or "pretty much" that are more common in the natural speech.