The Bootstrap grid system is based on how many columns? Q & A › The Bootstrap grid system is based on how many columns? 0 Vote Up Vote Down Admin Staff asked 3 years ago The Bootstrap grid system is based on how many columns? A. 12 B. 9 C. 3 D. 6 Share this:TwitterFacebookWhatsAppPinterestLike this:Like Loading... 1 Answers 0 Vote Up Vote Down Admin Staff answered 3 years ago A. 12 Share this:TwitterFacebookWhatsAppPinterestLike this:Like Loading...