To the best of my knowledge it's A
The Confederate States of America
Rights of citizenship - that’s all I know sorry if it wrong-
Women were not fighting in the First World War - so the first option is false. They also didn't have voting rights till 1920- so we reject the last answer as well.
The correct answer is that they were working in civilian jobs that had typically been held by men -this is what contributed to them being able to fight for political rights later.