Porter is studying the influenza pandemic of world war i. he is examining letters, journal entries, autobiographies, and newspaper articles from that time to see how fear of the disease affected the daily life of millions of people throughout europe during that era. which statement describes the type of history porter is writing?

porter is writing economic history because he is focusing on the cost of developing vaccines.

a yes vote means: the legislature, with a two-thirds vote, could change daylight saving time if the change is allowed by the federal government. absent any legislative change, california would maintain its current daylight saving time period

19th amendment granted women the right to vote. the 19th amendment guarantees all american women the right to vote.