Which domains of language encompass phonology, morphology, and syntax?

The correct answer highlights that phonology, morphology, and syntax are all essential components of the broader concept of language. Language itself is a complex system that consists of multiple domains, each playing a critical role in communication.

Phonology refers to the sound systems of a language and the rules governing the organization of sounds. Morphology deals with the structure of words and the rules for word formation, while syntax focuses on how words combine to form phrases and sentences. These domains collectively contribute to one's overall linguistic competence and understanding.

Choosing the option that identifies "language" as the encompassing term emphasizes the interconnectedness of these components within the study of language. Each domain supports the effective use and comprehension of language, playing distinct but interrelated roles in communication, reading, and writing. In contrast, the other options—syntax, comprehension, and speech—do not fully encapsulate the entirety of these domains and are thus narrower in scope.