Which option shows a correct approach to using texture in data visualization?

Correct answer: Use distinct patterns, clear labels, and accessible contrast for each category.

The governing concept is visual encoding: texture can distinguish categories when colour alone is insufficient, but it must remain readable and understandable. Option A is correct because distinct patterns, labels, and accessible contrast help viewers identify groups, including viewers with colour-vision difficulties. Similar dense patterns may be confused, while removing the legend or repeating one pattern destroys the category distinction.