In Terms of Defining Measurable Goals, Which of the Following

In terms of defining measurable goals, which of the following represents a true statement?

A) Measuring the intensity of a behavior is not an effective method for operationalizing a variable.
B) Whenever possible, it is best to define goals via positive rather than negative behaviors.
C) One overarching goal must be utilized; it is not possible to break down complex behaviors into smaller subgoals.
D) Using several different measures to capture a behavior duplicates efforts and results in misuse of scare resources.