Which of the following is characterized by more complexity and length?

Extended text is characterized by more complexity and length because it involves a larger body of written or spoken content that typically contains multiple ideas, concepts, or narratives woven together. This kind of text allows for the development of themes, arguments, or stories over a significant span, providing a richer context for understanding and analysis. This length gives readers or listeners the opportunity to engage with the material on a deeper level, examining the interplay of different elements and gaining a fuller understanding of the subject matter.

In contrast, phonetics deals specifically with the sounds of speech and their physical properties; it does not inherently involve complexity in terms of length or narrative structure. Pragmatics focuses on the use of language in social contexts and the meanings derived from specific situations, but it does not inherently require extended discourse. Syntax, while it can involve complex sentence structures, relates more to the rules and patterns of sentence formation rather than the overall length or complexity of the text itself. Thus, extended text stands out as the choice that embodies both greater complexity and length.