What were the actions lenin took as a revolutionary?

Organizing Marxist cells, Political Rally's, Protests/Strikes and Armed Revolution.

Explanation:

During Lenin's time as a Revolutionary, He would travel all over Europe organizing Communist Sympathizers, Cells and Parties as to spread the "World Wide Revolution" as to overthrow the Ruling Monarchist and Capitalist's that presided over nations like Russia, Germany, Austria-Hungary, The Ottoman Empire, Britain, France etc. He also during his times in Russia rallied much of the Peasantry and Lower Classes to Revolt, Protest and Strike against the ruling Tsar, Nicholas II. For the very poor state of the Economy and the General treatment of the Lower classes at the hands of the upper classes along with the Mass Famines and Starvation due to Russia's participation in WWI. He was also responsible for creating Political commentary and writings to spread to other countries to incur Revolution and create Communist parties abroad. Finally he was most well known for the October Revolution which saw the armed revolt of his Red Guards against the White Russian, Along with other supported revolutions in places like Germany, Finland, Italy, Hungary and many more.

explanation:

there are two statements that are incorrect.

1. the marshall plan was a lend lease program. it was an economic plan that europe redevelop itself after wwii.

2. einstein didn't really do anything to further the allied cause in building the bomb. he merely sent a letter to fdr telling him (in 1939) that if the united states entered the war, perhaps it would be wise to build the bomb before germany did. i would say this answer is incorrect, but when america entered the war 2 years later, fdr thought it might be a good idea to take einstein's advice.

the 4th choice is definitely so wrong that is likely the single answer of this question