The correct answers are "religious freedom", "political freedom", and "wealth".
The massive waves of immigration which came from Europe throughout the 18th and 19th century were fueled by the intentions of these people to pursue a better life without oppression from their governments. This oppression was not only political but also religious, as many of the settlers were protestants who wanted to found their own churches in new territories.
Achieving better living standards was also a main driver behind immigration, as European immigrants saw the acquisition of lands as a possibility in comparison to Europe, where much of the land was already owned and operated.