Russian Revolution

Vladimir Lenin founded the Bolshevik Party in 1903, leading the Russian Revolution in 1917.

Step 1: Understanding the history of the Russian presidency.
Boris Yeltsin was the first elected President of Russia, elected in 1991 after the dissolution of the Soviet Union. He served as president until 1999.
Step 2: Analysis of options.
- (1) Leonid Brezhnev: Brezhnev was the leader of the Soviet Union but never the president of Russia.
- (2) Nikita Khrushchev: Khrushchev was the Soviet leader but not the elected president of Russia.
- (3) Joseph Stalin: Stalin was the dictator of the Soviet Union but never the elected president of Russia.
- (4) Boris Yeltsin: Yeltsin was the first elected president of Russia after the Soviet Union's collapse.
Step 3: Conclusion.
The correct answer is (4) Boris Yeltsin.

Step 1: Historical Context.
The Bolshevik Communist party was founded by Vladimir Lenin, who played a leading role in the Russian Revolution of 1917. Lenin's leadership was pivotal in the establishment of the Soviet Union.
Step 2: Analysis of options.
- (A) Vladimir Lenin: Lenin is indeed the founder of the Bolshevik party, leading the October Revolution in 1917, and later became the leader of the Soviet Union.
- (B) Joseph Stalin: Stalin was a key figure in the Soviet Union, but he succeeded Lenin as the leader and was not the founder of the Bolshevik party.
- (C) Nikita Khrushchev: Khrushchev was an important Soviet leader, but he did not found the Bolshevik party. He came to power after Stalin's death.
- (D) Leonid Brezhnev: Brezhnev was a Soviet leader but did not play a role in founding the Bolshevik party.
Step 3: Conclusion.
The correct answer is (A) Vladimir Lenin, as he was the founder of the Bolshevik Communist party.