48. Citizen sued the Mayor in federal court. Mayor filed a motion to dismiss for failure to state a claim under Rule 12(b)(6), attaching as an exhibit an affidavit setting forth facts that would establish immunity for Mayor. In addressing Mayor's Rule 12(b)(6) motion, may the court consider the affidavit as support for a dispositive ruling in favor of Mayor? (A) No, because a motion to dismiss under Rule 12 is limited to the face of the complaint. (B) No, unless Citizen admits that the allegations in the affidavit are true. (C) Yes, because the court can take judicial notice of the allegations in the affidavit. (D) Yes, if the court converts the motion to one under Rule 56