What is a common characteristic of Gothic cathedrals? Their frescoes teach Bible stories to the illiterate. They have ornate triumphal arches through which worshippers enter. They contain sculpted portals and stained-glass windows. Their interiors contain a dome decorated with heavenly gold leaf.

## Step 1<br />The problem is asking us to identify a common characteristic of Gothic cathedrals. Gothic architecture is known for its unique features, which include pointed arches, ribbed vaults, and flying buttresses. These elements allowed for more those found in Romanesque architecture.<br /><br />## Step 2<br />Among the options provided, the one that best represents a common characteristic of Gothic cathedrals is the presence of sculpted portals and stained-glass windows. These elements are not unique to Gothic architecture, but they are particularly prominent in this style.<br /><br />## Step 3<br />Sculpted portals and stained-glass windows are not only functional but also serve an aesthetic purpose. They are used to depict biblical stories and saints, which were particularly important in the Middle Ages when these cathedrals were built.