In which of the following situations is it most appropriate to use informal language?
A. A job application for a teaching position
B. A peer review in an academic journal
C. A text message to a friend from class
D. An email to a professor about an assignment
Informal language is typically suitable for casual and personal communication, such as text messages to friends. In more formal settings, like a job application, peer review, or an email to a professor, it is generally more appropriate to use formal language.
Therefore, the Correct Answer is C.