; (B) a noncareer appointee in the Senior Executive Service (or any other system similar to the Senior Executive Service); or (C) an appointee to a position that has been excepted from the competitive service by reason of being of a confidential or policymaking character in an executive agency, including a position under schedule C of subpart C of part 213 of title 5, Code of Federal Regulations, and any other position excepted under comparable criteria