Which of the following is NOT one of the three dimensions of register?

• A. Field
• B. Tenor
• C. Mode
• D. Style

Answer: (D)

The three dimensions of register, which help in understanding how language functions in different contexts, are field, tenor, and mode.

Field pertains to what is happening in the communication, including the subject matter and the activity involved. Tenor relates to the participants in the communication situation, their roles, relationships, and the social dynamics at play. Mode concerns the form of communication, such as whether it is spoken, written, or visual, which influences how the message is delivered and received.

Style, while it might relate to the choice of language or the way something is expressed, is not considered one of the three core dimensions of register. Thus, this option does not fit within the established framework of field, tenor, and mode, which are crucial for analyzing different communicative situations and understanding how context shapes language use.