The grouping selector is used to apply the same style to multiple elements, not different styles. You group selectors together by separating them with commas to apply a single set of style definitions to all of them.

For example:

Here, h1, h2, and p elements will all have the same styles (blue color and 16px font size), not different ones.

So, the correct interpretation is:

• The grouping selector applies the same style definitions to multiple elements, not different ones.