Which of the Following Is TRUE of the Lander

Which of the following is TRUE of the Lander?

A) Regional political parties are significantly different from national ones.
B) There is a strict separation of powers between the federal and Lander governments.
C) They have few powers and are not a significant force in policy-making.
D) They are required to share a portion of their revenues so Landers with stronger economies help to support those with weaker economies.
E) The number of Lander changes frequently as the federal government tries to give more autonomy to different regions and ethnic groups.