Increasingly, Practitioners Are Being Asked to Document Measurable Results

Increasingly, practitioners are being asked to document measurable results.What is the major motivation of this pressure to measure impact?

A) Public relations results are typically intangible.
B) Clients will not pay for programs for which results cannot be detected.
C) Management wants to know how public relations contributes to achieving goals.
D) Social media have replaced the need to gather data on program impact.
E) All of the above.