Q: Which formats may be used to add a custom campaign parameter to a URL?
A) www.googlemerchandisestore.com/?utm_campaign=fallsale
B) www.googlemerchandisestore.com/?utm_campaign=fall_sale
C) www.googlemerchandisestore.com/?utm_campaign = fall sale
D) www.googlemerchandisestore.com/?utm campaign = fallsale
Correct Answer: A and B.