The idea that the nascent universe passes through the phase of exponential expansion, which was driven by the positive density of vacuum energy, is called;

Cosmic inflation

Grand unification theory

Theory of Supersymmetry

All answers are correct.

Alan Guth formally proposed the idea of cosmic inflation in 1981, the idea that the nascent universe passed through a phase of exponential expansion that was driven by a positive vacuum energy density (negative vacuum pressure).

NASA Goddard Space Flight Center wikipedia → Alan Guth

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Answers by country

Pakistan

64%

17%

11%

Australia

62%

13%

17%

Germany

51%

10%

27%

Greece

50%

28%

21%

the Philippines

47%

11%

23%

17%

India

46%

17%

15%

19%

238

the United Kingdom

41%

21%

15%

21%

the Netherlands

41%

16%

25%

16%

the United States

39%

22%

16%

19%

131

Canada

33%

16%

50%

France

30%

70%

Poland

28%

24%

15%

31%

5810

What are the most luminous objects in the universe?

What is the source of the most powerful release of energy in the universe, second in scale only to the Big Bang?

What was the most beautiful comet of the second half of the twentieth century, with two tails visible to the naked eye?

Halley's comet

Comet McNaught

Comet Hale-Bopp

There was no such comet

Which of the following drugs have the opposite effect to the others?