Theis a group of 9 judges (Called Justices) that act as the final authority in all legal matters in the U. S. A) Supreme Court
B )Chief Justice
C) Associate Justices
D) Magistrate judges

the answer is a. or c.

the right answer is a

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.