The correct answer is B) Education.
The area in which was there a considerable improvement in expanded opportunities for women was education.
Women started to get more opportunities in the US society after they gained the right to vote, granted by the 19th Amendment to the United States Constitution. All the struggle faced by the women's suffrage movement that started in the Seneca Falls Convention of Seneca Falls, New York in 1848, culminated with a victory for American women on August 18, 1920, with the signing of the amendment.
