What aspect of language is concerned with the word order and arrangement?

The focus on word order and arrangement in a sentence is primarily associated with syntax. Syntax is the set of rules, principles, and processes that govern the structure of sentences in a given language, specifically how words combine to form grammatical sentences. It dictates how different parts of speech (such as nouns, verbs, adjectives) interact and are organized to convey meaning effectively. Understanding syntax is fundamental for comprehension and communication, as improper arrangement can lead to ambiguity or confusion.

Phonology deals with the sound systems of languages, including how sounds function and their patterns, rather than their order in sentences. Semiotics relates to the study of signs and symbols and how they create meaning, encompassing wider contexts beyond just word arrangement. Pragmatics focuses on the context of language use and how the meaning can change depending on the situation, speaker, and intent, rather than on the structural aspects like word order. Thus, syntax is the correct answer as it specifically addresses the rules governing the arrangement of words in sentences.