Answer: B) Slaves taken from Africa and brought to America in the 1800's
Explanation: Originally, the definition of a diaspora would be the displacement of a people outside their homeland, for whatever reason, often for fear of their lives, then for economic or political or other reasons. In doing so, the displaced peoples tend to live in close communion with their compatriots and try to maintain their national and cultural identity. Such a diaspora known throughout history is Jewish, meaning that the term diaspora can also represent a nation that is scattered all over the world and members of the people live in many places, not just in one place.
Today, the diaspora can also mean refugees due to the aforementioned wars and fear for their own lives, when the whole part of a nation seeking emigration.
Of the options offered, option B fits into the aforementioned definition of diaspora. The people of Africa who were taken to America as slaves, form one national corps with their identity and heritage and as such make the diaspora in these and such conditions.
Many manufacturing units were relocated to the urban areas due to the introduction and usage if steam power.
Explanation:
Second half of the nineteenth century is known for the factories that used steam power in the urban areas. Separate buildings housed the steam engine, and it inspired the development of factory model. Advance in iron and steel industry and rail road construction companies urged the factorial set up in cities rather than the towns.
In the countryside, many factories were set up near the rivers so that the finished products were easily transported to different places. Due to the invention of the steam engines, the transportation of finished goods was easy and feasible.