How Does Quantitative Research Contribute to Evidence-Based Practice

How does quantitative research contribute to evidence-based practice?

A) It provides facts that nurses can add to their knowledge base. This makes practice more objective and quantifiable.
B) It provides scientific support for policies already in place. More evidence makes an existent policy more defensible.
C) It provides evidence of opposing policies already in place. Evidence in opposition to policies may result in new policies.
D) It allows the nurse to understand the personal experience of illness and the meaning the client attaches to it. This engenders compassion.
E) It contributes evidence that will make nursing practice almost completely evidence-based, eliminating different styles of nursing practice.