You write the following markup to create a page.

The correct CSS is option B because the SVG filter is declared inside < defs > with the identifier id= " f2 " . To apply an SVG filter from CSS, the filter property must reference that filter by URL syntax using the filter’s ID selector: filter: url( " #f2 " );. The text selector targets the SVG < text > element, so the rule applies the defined filter effect to the visible text content, Blur Me!. The filter itself uses < feOffset > , < feGaussianBlur > , and < feBlend > to create the blurred visual effect. Option A is incorrect because filter: #blur; is not valid filter-reference syntax and does not match the actual filter ID. Option C is incorrect because fill controls paint color, not filter application, and blur is not a valid fill value. Option D uses url(blur), which does not reference the defined f2 filter and omits the required ID reference. References/topics: SVG filters, < filter > , filter IDs, CSS filter: url(#id), SVG < text > styling.