In the given context, the question is asking about trade-offs in the research process. Stage I involves defining the research, which includes identifying the problem, objectives, and research questions. Stage II, on the other hand, focuses on the research design and plan, which involves making decisions about the methodology, data collection, and analysis techniques. Therefore, the correct answer is Stage II: Research Design/Plan because this stage involves making trade-offs and decisions that will shape the entire research process.