The correct answer is option B. "Primary or secondary sources related to the event". In order for a historian to make a valid historical interpretation, she or he must search for trustworthy information in the form of primary or secondary sources of the event. Historical events, especially ones that happened many centuries ago, require for strong evidence to support any interpretation of the historian.
Taking into account the statement above: "Which of the following describes the response of Irish Americans to the new immigrants who entered the United States after 1870?"
The Santa Fe Ring was a group of powerful attorneys and land speculators in the United States during the late 19th century and into the early 20th century. It amassed a fortune through political corruption and fraudulent land deals