Answer: the answer is A
Explanation: the declared public policy within the Soviet Union of openly and frankly discussing economic and political realities: initiated under Mikhail Gorbachev in 1985.
Rayograph was part of the Dada movement. The correct option among all the options given in the question is option "c". As there was great comradery between the artists living in Paris, several artists did choose to make a living there. Between the years 1920 and 1923, many great artists were working together in Paris.
One of the major cause was "East India Company" ended and British rule came into existence in India.
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He combined vertical and horizontal integration.