When an artist uses scale to indicate the relative importance of elements in a composition, he or she is employing this kind of scale. A monumental scale B small scale C human scale D proportional scale E hierarchical scale

## Step 1<br />The problem is asking us to identify the type of scale an artist uses when they want to indicate the relative importance of elements in a composition. <br /><br />## Step 2<br />Let's analyze each option:<br />- A monumental scale refers to large-scale works, not necessarily indicating importance.<br />- A small scale refers to small works, not necessarily indicating importance.<br />- A human scale refers to works that are life-sized, not necessarily indicating importance.<br />- A proportional scale refers to works that are proportional to each other, not necessarily indicating importance.<br />- A hierarchical scale refers to works where the size of elements indicates their importance.<br /><br />## Step 3<br />From the above analysis, it is clear that the hierarchical scale is the one that indicates the relative importance of elements in a composition.