Which Terms Best Apply to the Federal Constitutional Court in Germany

Which terms best apply to the Federal Constitutional Court in Germany?

A) Activist, independent, and secret in much of its decision making
B) Activist, independent, and somewhat open in its decision making
C) Passive, dependent on the legislature, and highly secretive
D) Passive, dependent on the executive, and open in its decision making
E) Activist, independent, and completely open in all of its proceedings