Google Tag Manager Fundamentals Which Built-In Variable Should You Use To Define An Event Trigger Based On The Class Of A Submit Button? By Editor Staff - May 8, 2020 0 41 Facebook Twitter Pinterest WhatsApp ReddIt Linkedin Email Print Tumblr Telegram Mix VK Digg LINE Viber Naver Built-in Event variable Built-in Element variable Built-in Click Classes variable Built-in Click Target variable Answer: C / Built-in Click Classes variable