The correct answer should be
<span>4. A profound desire to see the USSR standard of living increase
While Khrushchev introduced things like the perestroika to reform the economy, Gorbachev was about introducing human rights and liberating the presses through the Glasnost ideas. They both wanted to increase the standard of the Soviet people and give them more rights.</span>
The term for the significant growth in population following WWII is the "baby boom." We also now refer to those people as "baby boomers"
I believe the answer is "change to meet the needs of a modern society".