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The correct option is A,Researchshows that distressed marital couples are distinguished by excessivepositive affect.Researchrefers to the systematic investigation, exploration, and analysis of a particular topic or subject with the goal of generating new knowledge, expanding existing knowledge, or solving specific problems. It involves a structured andmethodical approach,employing various methodologies, techniques, and tools to collect, interpret, and evaluate data or information. Research can be conducted in various fields such as science, social sciences, humanities, technology, and more.The primary purpose of research is to deepen our understanding of the world around us and advancehuman knowledge. It involves formulating research questions or hypotheses, designing experiments or studies, collecting and analyzing data, and drawing conclusions based on the findings.Researchersoften publish their work in academic journals or present it at conferences to share their discoveries and contribute to the collective knowledge of their respective fields.To know more aboutResearchrefer here :brainly.com/question/24174276#SPJ4...