Final answer:
The study that best represents conversation analysis is one investigating how individuals negotiate meaning in everyday talk, as it closely aligns with symbolic-interactionism.
Step-by-step explanation:
The hypothetical sociological study that BEST captures the methodological approach of conversation analysis is Option 3: A study investigating how individuals negotiate meaning in everyday talk. Conversation analysis focuses on the micro-level of social interaction, examining how people use language to create and negotiate social identities and relationships. This aligns closely with the domain of symbolic-interactionism, which is interested in daily interactions and the understanding of symbols and language.