We use information from which two sources in order to determine whether an author uses a word or phrase differently than we use it now? a. a dictionary and a thesaurus b. a usage dictionary and a dictionary c. the reading itself and a thesaurus d. the reading itself and a dictionary

because of all the immigration, america became one big melting pot. the diversity of cultures from all over the world made america somewhat divided as well. people that immigrated stayed with their kind, and their traditions, while native born americans stayed with their kind and their traditions. normally, people born in american scorned the immigrants as well. the new religions also divided america. in summary, it took away from the american culture and identified america as the "melting pot."

answer; i believe that the correct answer is (scientific data);