Which of the following is a positive impact attributed to immigrants arriving in u. s. "gateway" cities?
a) buying and renovating properties
b) spending money in local businesses
c) establishing new businesses
d) all of the above

D. All of the above because new businesses means more jobs spending money helps businesses and buying properties helps businesses.

The criminological theory that alan used to address the problem is routine activity theory.  in this situation, the community was not supported by the political party. as a result, alan was forced to resort to crime because of the status that his family is currently in.