Answer:
The main reasons for the emergence of child labor in bigger cities are unhealthy family life and economic deprivation. Families strained by financial difficulties cannot cope with the increasing demands of their children and sometimes even fail to provide them with adequate nutrition.
Explanation:
It's kinda like an educated guess.
Most of the reason Europe was able to imperialize other nations such as Asia and Africa was because of advanced weaponry and being more powerful. During the time Europe felt it was their duty also known as white man's burden to imperialize other nations that they felt were inferior to them.
Option D, the Necessary and Proper Clause, is the right answer.
By contrast, the Necessary and Proper Clause clearly grants incidental authorities upon Congress. This Necessary and Proper Article is sometimes called the elastic clause. This clause comes under the section VIII of the Article I, in the constitution of the United States. The Necessary and Proper clause empowered the Congress to enact the regulations required for the performance of its other authorities instituted by the Constitution. For instance, to direct Commerce with different Nations, and among various states, and with Indian tribes comes under the Necessary and Proper Clause.