What Is the Relationship Among the Research Problem, the Research

What is the relationship among the research problem, the research purpose, and the research question?

A) The purpose is but one of many purposes that can be generated from one particular problem statement.
B) The problem statement is more focused and specific than is the purpose.
C) The research purpose and the research question should address the same facet of the research problem.
D) The problem, purpose, and question are all focused upon a specific gap in the knowledge base.
E) Research can be conducted without a research purpose, but not without a research question.