Q: 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: Consequently, Molotov, fearing that EDC would be directed in the future against the USSR therefore "seeking to prevent the formation of groups of European States directed against other European States", made a proposal for a General European Treaty on Collective Security in Europe "open to all European States without regard as to their social systems" which would have included the unified Germany (thus making the EDC perceived by the USSR as a threat unusable). But Eden, Dulles and Bidault opposed the proposal.
A:
Who made a proposal for a General European Treaty on Collective Identity in Europe?