Read the following excerpt from a US court opinion:
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an interest in filing a motion for summary judgment, but apparently chose not to file a motion because it was untimely. Upon a review of defendants’ motion for summary judgment and plaintiffs’ response, and in view of the absence of any material facts in dispute, we granted plaintiffs leave to file a motion for summary judgment as to liability only. See Open Inns v. Chester County Sheriff s Department, Civ. No. 97-4822 (E.D.Pa. Sept. 22, 1998). 18 . Defendants LaRose, Clemens, and Freas all argue that they are protected by qualified immunity. As noted above, Sheriff Erling has been sued only in his official capacity. Thus, the suit against him is essentially a suit against the county. See Will v. Michigan Dep't of State Police, 491 U.S. 58, 71, 109 S.Ct. 2304, 105 L.Ed.2d 45 (1989) ; Monell, 436 U.S. at 690 n. 55, 98 S.Ct. 2018
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What is the most suitable continuation to the opinion? Your options are:
A. holding that a suit against a state official in his or her official capacity is not a suit against the official but rather is a suit against the officials office
B. holding that a damages suit against a state officer in his official capacity was barred because it was functionally a suit against the state
C. holding that an official capacity suit should be treated as a suit against the entity
D. holding a suit against an agency of the state is a suit against the state
E. holding that suit against county sheriff in his official capacity was suit against county
Reply with [A, B, C, D, E] only.