They both have a gold as a major resource
The correct answer for this question is "a. a lack of child labor laws" All of the following were factors that led to the first labor strikes in the United States EXCEPT <span>a lack of child labor laws. It is very important to have laws regarding and protecting the safety of the children.</span>
Answer: Indentured servants
Although it was quite an imperfect system, which was subject to diverse kinds of abuse, indentured servitude was one way by which some early settlers were admitted into America in a bid to address the problem of labor shortages.
Indentured servants (individual or family) would voluntarily offer to serve under a labor contract for a period of two to seven years, or even more, based on many factors in order to join a vessel heading to America since they cannot afford the funds to pay for the voyage.
Stalin unified the Soviet Union after the death of Lenin, although it should be noted that this "unification process" involved mass killings and deportations of people Stalin deemed to be enemies of the state.