Which URL can be used to measure the paid search campaign activity?

An analyst needs to provide a URL to the marketing team that can be used to track paid search campaign activity. The analytics implementation is to capture the value of the “cid” query parameter, and set that as the value of s.campaign.

Which URL can be used to measure the paid search campaign activity?
A . www.site.com/home.html?cid=paid_search-google
B . www.site.com/home.html&utm_cid=paid_search-google
C . www.site.com/home.html&cid=paid_search-google
D . www.site.com/home.html?utm_cid=paid_search-google

Answer: A

Explanation:

Reference: https://marketing.adobe.com/resources/help/en_US/sc/implement/analytics_implement.pdf (page 219)