Correct option is D
Ans (d)
Sol. Authority: This refers to knowledge obtained from trusted sources or experts. While authoritative sources are valuable, they are not always the most reliable means of obtaining knowledge because they may be based on opinion rather than evidence.
Tradition: This involves knowledge passed down through customs or practices. While it has historical significance, it may not always be scientifically validated and could be outdated or inaccurate.
Trial and error: This approach involves experimenting with different methods and learning from mistakes. Although it can be useful in some situations, it is not the most reliable or systematic method for obtaining nursing knowledge.
Scientific research: Scientific research is the most reliable means of obtaining nursing knowledge because it is based on rigorous methods, evidence, and peer-reviewed studies that ensure accuracy and validity. Scientific research helps advance the field of nursing by providing evidence-based practices.