Which of the Following Illustrates Picket-Fence Federalism

Which of the following illustrates picket-fence federalism?

A) The central government of Sisliboa vesting the entire duty of charting, implementing, and executing welfare policies to its local governments
B) The central government of Funjiba creating, implementing, and executing its national education policy all by itself
C) The national government of Girinal outsourcing its policy implementation duties to qualified expatriates living in the country
D) The national government of Hunsland budgeting and charting a welfare policy and its state and local governments executing it
E) The central government of Ikiba outsourcing its policy implementation activities to policy institutes outside the country