The Bootstrap grid system is based on how many columns?

How many columns are allowed across the page in Bootstrap grid system?A16B12C8D24

Question 2How many columns does Bootstrap's responsive grid consist of?

A grid is the intersection of rows and columns that create units of space. Each design element (text, images or buttons) fits into modules.1 pointFalseTrue

CSS grid introduced a new length unit, fr, to create flexible grid tracks. Referring to the code sample below, what will the widths of the three columns be?.grid {display: grid;width: 500px;grid-template-columns:50px 1fr 2fr;}AThe first column will have a width of 50px. The second column will be 50px wide and the third column will be 100px wide.BThe first column will have a width of 50px. The second column will be 150px wide and the third column will be 300px wide.CThe first column will have a width of 50px. The second column will be 300px wide and the third column will be 150px wide.DThe first column will have a width of 50px. The second column will be 500px wide and the third column will be 1000px wide.

Imagine we have a grid with the following CSS properties, with 4 boxes inside of it. If we added a fifth box to the HTML, what width would it have?.grid {  grid-template-rows: repeat(2, 50px);  grid-template-columns: repeat(2, 100px);  grid-auto-rows: 60px;  grid-auto-columns: 70px;}60px50px100px70px0px