Question

There are 12 __________ in the United States, which __________ from the district courts.
A.
Congressional districts . . . interview judges
B.
regional circuits . . . hear cases on appeal
C.
supreme courts . . . hear cases on appeal
D.
state supreme courts . . . draw their legal reasoning

Answer 1

The most appropriate completion for the sentence is:

B. regional circuits . . . hear cases on appeal

So the complete sentence would read: "There are 12 regional circuits in the United States, which hear cases on appeal from the district courts."