Which of the Following Statements Most Accurately Describes Methodologic Research

Which of the following statements most accurately describes methodologic research?

A) A distinctive process of planning, developing, testing, and disseminating interventions.
B) Systematic analysis of data from a previous study to gain new knowledge of a given phenomena
C) Investigation of new instrument development necessitated by the need for reliable outcome measures
D) Research that obtains quantitative information about the prevalence, distribution, and interrelations of variables within a population