The question above has multiple choices as listed;
a. Source and
Medium
b. Campaign and Ad Content
The correct answer is A. Source and Medium
Source and medium combines the dimensions source and medium. Anyone referred to a website has an origin or a source. Examples of possible sources include Google, Facebook.com, and direct for those who typed your URL directly. Every referral, on the other hand, has a medium and possible examples of medium include organic, cost per click, referral, email, and none.