You want to research colleges in new england. to narrow your search you want to go to the school sites and think that filtering your search by domain .edu would be
how do you pull up only .edu sites

adding site:.edu at the end of your search

Explanation:

If you want to run a search on google that will only contain sites with domain .edu so you will only get educational documents and information, you just have to add the words: "site:.edu" at the end of your search and that way you´ll only get results of educational institutions.

i would say b. research typically uses a variety of sources

answer; they both highlight the power of the situation in determining behavior;