This task is about creating an unanswerable question based on a given passage. Construct a question that looks relevant to the given context but is unanswerable. Following are a few suggestions about how to create unanswerable questions:
(i) create questions which require satisfying a constraint that is not mentioned in the passage
(ii) create questions which require information beyond what is provided in the passage in order to answer
(iii) replace an existing entity, number, date mentioned in the passage with other entity, number, date and use it in the question
(iv) create a question which is answerable from the passage and then replace one or two words by their antonyms or insert/remove negation words to make it unanswerable.

Passage: In 1971, the United States Department of Health, Education, and Welfare approached Marvel Comics editor-in-chief Stan Lee to do a comic book story about drug abuse. Lee agreed and wrote a three-part Spider-Man story portraying drug use as dangerous and unglamorous. However, the industry's self-censorship board, the Comics Code Authority, refused to approve the story because of the presence of narcotics, deeming the context of the story irrelevant. Lee, with Goodman's approval, published the story regardless in The Amazing Spider-Man #9698 (MayJuly 1971), without the Comics Code seal. The market reacted well to the storyline, and the CCA subsequently revised the Code the same year.
When did the Comics Code Authority request Marvel to do a comic on drug abuse?