<span>If the revenue is less than the expenditure, a budget is said to be in deficit.</span>
Answer:
I believe the answer would be letter B
Explanation:
Gorbachev implemented a ton of radical reforms, which is just one of many things that led to the fall of the Soviet Union. Also, 1991 is the year the Cold War ended.
Both the processes of creating a timeline and thinking chronologically
are similar in that both require thinking about time as a series of
events that take place one after the other--as opposed to focussing on
similarities and connections between events that may be "out of order"
on a given timeline.