Here is a list of pull factors as to why European immigrants to America during the late 19th and early 20th centuries:
1) Labor contracts- European immigrants were recruited by different American companies to come work for them. This guarantee of employment enticed many individuals to leave their homes.
2) Advertisement of cheap farmland- Many individuals wanted their own space and the ability to make themselves a living. Going to America to buy cheap farmland would afford them this opportunity.
3) Freedoms/Opportunity for a better life- America was advertised as a country where immigrants can start fresh and work hard in order to generate a new fulfilling life.
The second choice mentioned above exposed the element that caused the British to surrender at Yorktown George. The troops of Washington outnumbered the British soldiers by two to one, referring to August 27-29, 1776. The army was defeated completely, and that is the main factor.
The answer would likely be C! Natural selection cannot select what a species need, the adaptions may be positive or negative.
