The correct option would be D.
Women gained the right to vote with the 19th amendment opening up an array of opportunities for them.
The National Defense Act of 1916, Pub.L. 64–85, 39 Stat. 166, enacted June 3,1916<span>, was a federal law that updated the Militia </span>Act<span> of 1903, which related to the organization of the military, particularly the </span>National<span> Guard.</span>