In CASE 61Free Enterprise Fund V

In CASE 6.1Free Enterprise Fund v.Public Company Accounting Oversight Board(2010) before the U.S.Supreme Court,the plaintiffs brought various constitutional challenges involving the appointment and standards for removal of members of the Public Company Accounting Oversight Board.How did the Court rule and why?

A) That limitations on the removal of Board members contravened the Constitution's separation of powers and that the unconstitutional provisions were not severable from the remainder of the statute.
B) That limitations on the removal of Board members contravened the Constitution's separation of powers but that the unconstitutional provisions were severable from the remainder of the statute.
C) That limitations on the removal of Board members were constitutional.
D) That limitations on the removal of Board members were constitutional only so long as the executive branch failed to challenge the restrictions placed on the president.