Regarding Operational Definitions, Which of the Following Statements Is MOST

Multiple Choice

Regarding operational definitions, which of the following statements is MOST accurate

A) For a given conceptual variable, there is usually just one operational definition.
B) For a given conceptual variable, there is a single best operational definition.
C) For a given conceptual variable, many operational definitions are usually possible.
D) Some conceptual variables cannot be translated into operational definitions.