Why did most states adopt mothers pension programs after 1910

Before 1900, there are already several states that made their attempts to lessen the working hours of mothers. A movement was created and sought the help of people to help provide for widowed mothers so they could take care of their children. The Mother's Pension Program helped pushed the welfare of mothers and also children who became orphans. The first mother's pension law happened in Illinois last 1911.  It was adopted by other States primarily to help the children who were left by their fathers and orphans, and dependent mothers. 

What is the

The answer to your question would be b