Answer:
A famine caused by the Failure of a stable food crop
Explanation:
This name was "Glasnost".
Glasnost was the name used for more transparency and openness in the government of the Soviet Union that Gorbachev was calling for. It has a meaning similar to "open to public knowledge).
<span>C.Voters would elect a convention a adopt a new state constitution. </span>
There were several major factors that led to stalemate in the trenches, but the best options from the list are "Defensive weapons were better than offensive ones.
<span>and Trenches were designed for defense."</span>