How did the military recruit most of the 4 million Americans who served during World War I?

Question

Responses

through the draft authorized by the Selective Service Act
through the draft authorized by the Selective Service Act

through volunteers that enlisted in the service
through volunteers that enlisted in the service

by offering special tax benefits to recruits willing to serve more than one year

Answer 1

Most of the 4 million Americans who served during World War I were recruited through the draft authorized by the Selective Service Act. While there were also volunteers who enlisted in the service, the majority of troops were called up through the conscription process established by the Act.