Kizspy | Question: 31 (Choose 1 answer)
Which of the following code using Bootstrap 3 to insert at [MISSING CODE] to set up four equal columns in an md viewport?
<div class="row">
<div class="MISSING CODE"></div>
<div class="MISSING CODE"></div>
<div class="MISSING CODE"></div><div class="MISSING CODE"></div>
</div>
A. col-md-3
B. col-sm-4
C. col-lg-3
D. col-xs-4
