What year did Mongolia stop receiving economic aid from the Communist Government of the Soviet Union? *
a. 1911
b. 1924
c. 2014
d. 1991
I think its b but I'm not sure.
If your reading assignment doesn't clarify this for you, read several of the search results here:
https://www.google.com/search?q=when+did+Mongolia+stop+receiving+economic+aid+from+USSR&oq=when+did+Mongolia+stop+receiving+economic+aid+from+USSR&aqs=chrome..69i57.6313j0j7&sourceid=chrome&ie=UTF-8