Return on Engagement Is One Measure That Was Devised as Social

Return on engagement is one measure that was devised as social media became increasingly more popular.There are many issues with return on engagement as a measure.Please select the response below that represents a challenge with measuring return on engagement

A) Return on engagement doesn't factor in reach
B) Return on engagement doesn't factor in search volume
C) Return on engagement assumes that there is a connection between engagement and sales
D) Return on engagement doesn't factor in how many people have come to your website