Venn diagram items require users to click or touch and hold an attribute or description while moving it into the selected region of the Venn diagram. The Venn diagram itself is a visual aid for the categorization task but is not required to answer the question.
Drag-and-drop items require vision and motor skills to move elements on-screen. Text boxes may be confusing to screen readers. Audio files are not accurate after elements have been moved. Drag-and-drop items cannot be answered with a keyboard or switches. Moving parts cannot be represented in paper-and-pencil, braille, or optical scan test forms.