The correct answer is A. Hundreds of protesters were shot after Father Gagon led them to the Winter Palace to demand reform; this was known as Bloody Sunday.
Explanation
In January 1905, in Russia, several workers' uprisings were carried out. On January 9, the demonstrators led by Father Gagon marched to the Winter Palace where Tsar Nicolas II was living, located in St. Petersburg Square, this demonstration was countered by the Czar's army who massacred around 130, also thousands more were wounded. This historical episode is known as the "Bloody Sunday".
After this day, in October of the same year, Tsar Nicolas II, in search of support for the Russian population and overcome the discomfort that there was, published the October Manifesto in which he gave concessions, rights to the population and creation of a parliament to allow the participation of the population in politics. according to the above, the correct answer is A. Hundreds of protesters were shot after Father Gagon led them to the Winter Palace to demand reform; this was known as Bloody Sunday.