Which sentence is an example of a clinical nursing research question? A. What percentage of nurses has a master's or doctorate degree?

Which sentence is an example of a clinical nursing research question?

A. What percentage of nurses has a master's or doctorate degree?

B. What is the appropriate course of action when a nurse is faced with a moral dilemma?

C. In what ways do nursing students benefit from a course on evidence-based practice?

D. What factors influence clients' weight gain following a smoking cessation intervention?