How does the 19th amendment (women the ability to vote) affect our government?

After the  passing of the 19th amendment, legislators feared the creation of a powerful female interest group. Out of this fear, acts like the Shepard-Towner Act (1921) which  provided federal funding for maternity care were passed. 
A curious fact, about the 19th amendment is that granted voting rights to white and black women. Nevertheless, within a decade black Southern women were back to disenfranchisement. Such granting and then stripping of power might have provided steam to the Civil Rights Movement of the 1960s. 

Ithink the answer is d i am not really sure tho