Basic General Knowledge
The theory of utilitarianism was expounded by

James Mill(1773-1839)
Jeremy Bentham (1748-1836)
All of these
Henry Sidgwick (1838-1900)

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Basic General Knowledge
Yuri Gagarin was

both (a) and (b)
the first person to fly at great height of about 340 km from the earth
None of these
a Russian cosmonaut & became the first man to travel in space.

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