Respuesta :
Answer:
C-freedom of speech remained after the invasion
Explanation:
The invasion of Czechoslovakia by the Warsaw Pact was an undeclared war in which troops from five socialist countries members of the Warsaw Pact on the night of 20 to 21 August 1968, led by the Soviet Union, invaded the Socialist Republic of Czechoslovakia Its objective was to stop the reforms of political liberalization promoted by the Czechoslovak president, Alexander Dubček, which had unleashed, previously, the Prague Spring.