The correct answer is B) they were given additional duties.
World wars impacted Germans in Oklahoma in that they were given additional duties.
During World War I and World War II, Germans that lived in the state of Oklahoma had a difficult time because Germany was the enemy of the United States. There were minor incidents of people who attacked and insulted Germans. But what really happened was that Germans were forced to stop speaking German, to stop the public practicing his traditions, they couldn't speak in German, and they were not able to read German newspapers and magazines.
"In Greek mythology, Danaë was an Argive princess and mother of the hero Perseus by Zeus. She was credited with founding the city of Ardea in Latium during the Bronze Age." - Wikipedia
