Ed chooses D
Here's a brief description of the contestant's attempt. Someone's probably working writing up more detail!
Ed's first response to being told to say a letter of the alphabet was to say "A letter of the alphabet." After being given the rephrased task, he chose the letter D. He tried to pass cups as 'drink receptacles' and the task brief as a 'dask', as well as putting other items like dinner plates, disposable gloves and his 'diabetes equipment'. If he had been allowed 'drink receptacles', he would have put 111 things on the tray, which still wouldn't have been sufficient to lift him out of fourth place.
(Written by Taskmaster Wiki contributors)