Was the Bolshevik Revolution of 1917 Caused by the Weakness of the Provisional Government or the Strength of the Bolsheviks?

The October revolution of 1917, led by the Bolshevik Soviets was the first communist revolution that successfully overthrew a government. This revolution was only possible due to the weaknesses of the provisional government.
Initially the provisional government was seen as a symbol of change, a symbol of possibility regarding freedom, land and stability. Support for the provisional government did not last long. Promises such as distribution of land and distribution of income were quickly swept under the carpet.…