Which sentence would be effective thesis statement for a historical essay on the american industrial revolution?

Plz ? ? 20 points for this question ! hhjc6

Historians are concerned with the accuracy of their writings and readings but are also aware of the inability of authors to know every angle of every story biases, perspectives, beliefs, and a variety of other differences history being told by one person at a time no one being totally accurate, as hard as we try really need on this, and you^^

Describe some effects of the rise of communism in the soviet union?