Which of the following is a part of the study of extralinguistic aspects of communication?

Kinesics is recognized as a part of the study of extralinguistic aspects of communication because it specifically focuses on body language, including gestures, facial expressions, and posture. These nonverbal cues play a crucial role in conveying meaning and context in communication. Understanding kinesics helps in interpreting messages beyond spoken or written language, illustrating how physical presence and movement can influence communication dynamics.

In contrast, phonology relates to the sound systems of language, which is more concerned with the actual verbal components of speech rather than the nonverbal cues that accompany communication. Metalinguistics involves the awareness and understanding of the language itself as a system, focusing on language structure and function rather than on how meaning is conveyed through nonverbal means. Locutionary acts refer to the act of producing sounds or utterances in language; while it is a vital aspect of communication, it does not pertain to the extralinguistic features that enhance or provide context to spoken messages.