These (2)_____ couples may believe that they would not make good parents; they may want freedom from responsibilities of childbearing; or, perhaps they are not (3)_____ able to have children.

These (2)_____ couples may believe that they would not make good parents; they may want freedom from responsibilities of childbearing; or, perhaps they are not (3)_____ able to have children. Other families in the United States have one adult who is a stepparent.