The mighty mass of many a mingled race, Who dwell in towns where he pursued the chase; The men degenerate shirted, cloaked, and hosed- Nose and eyes only to the day exposed

For any drag to work, there needs to be a way to indicate draggability. In the prior examples the only indication that something was draggable was the cursor change on mouse hover.

wheat:

The exam has 100 items, each of which includes a correct response and three distractors.