Which of the Following Best Describes the Return on Social

Which of the following best describes the return on social media impact model?

A) Takes the gross revenue estimated minus the cost of the social media advertising program divided by the cost of the program.
B) Employs statistical analysis to determine how sales trends shifted according to the timing of the social media marketing.
C) Calculates the change in the probability of purchase based on the exposure.
D) Calculates the difference between the cost to purchase a display ad on a site and the cost of the social media advertising program divided by the cost of the program.
E) Assigns a financial value to the resources we use to execute a strategy,measure financial outcomes,and calculate the ratio between inputs and outcomes.