Question 13

Modern mathematics encompasses numerous scholarly disciplines; however, discrete mathematics is often disregarded.

This sentence exemplifies formal language through its use of sophisticated vocabulary and a structured, complex sentence form. It discusses an academic topic in a manner that is appropriate for scholarly discourse.

A) There are various branches in social science such as anthropology, sociology, and psychology.

While this sentence is informative, it employs a more conversational tone and simplistic structure. The phrase "there are" is less formal compared to the more complex constructions found in formal writing.

B) During the culinary arts class, the instructor had us sample a delicacy, caviar!

This sentence is informal due to its use of exclamation and the phrase "had us sample," which is more casual and personal. It lacks the academic tone and complexity typically associated with formal language.

C) Modern mathematics encompasses numerous scholarly disciplines; however, discrete mathematics is often disregarded.

This sentence is the best example of formal language as it utilizes advanced vocabulary like "encompasses" and "scholarly disciplines," along with a complex structure. It maintains an objective tone that is suitable for academic writing.

D) My economics instructor mentioned that purchasing a car can be more cost-effective than renting one.

This sentence is more informal due to the use of "my" and the conversational structure. Phrases like "can be" and "more cost-effective" do not reflect the level of formality seen in academic or technical writing.

Conclusion

Option C stands out as the only sentence that employs a formal tone, characterized by its complex structure and advanced vocabulary. The other options either adopt a more conversational style or lack the sophistication required for formal language, making them less suitable in an academic context.