Read the following excerpt from a US court opinion:
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their staff in the correct way to handle child abuse cases. (Amended Complaint at 63.) Local governments may be held liable for' constitutional violations caused by official custom and policy. Monell v. Department of Social Services, 436 U.S. 658, 694, 98 S.Ct. 2018, 2037, 56 L.Ed.2d 611 (1978). A municipality cannot be liable for the failure to supervise or train an officer when there is no underlying constitutional violation by the officer. City of Los Angeles v. Heller, 475 U.S. 796, 106 S.Ct. 1571, 89 L.Ed.2d 806 (1986). However, actions of city policymakers, rather than those of the individual officer whose behavior directly impacted the plaintiffs, can be the predicate for § 1983 claims against a municipality. Simmons v. City of Philadelphia, 947 F.2d 1042, 1063 (3d Cir. 1991) , cert. denied, 503 U.S. 985, 112 S.Ct. 1671,
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What is the most suitable continuation to the opinion? Your options are:
A. holding that a jurys finding that a city had delegated its final policymaking authority in the area of law enforcement to a city police chief was supported by the evidence and warranted imposing liability upon the city
B. holding that city policymakers who owed an independent duty to pretrial detainees were individually liable under  1983 for prisoner suicide even though factfinder determined that the turnkey had not violated prisoners constitutional rights
C. holding city policymakers rather than turnkey were the city actors whose primary liability must be shown to establish  1983 claim arising from prisoner suicide
D. holding that a city manager was the final policymaker for purposes of section 1983 liability because of provisions in the norfolk city code requiring that all orders rules and regulations applicable to the entire police department must be approved by the city manager other than some police standard operating procedures
E. holding that city attorneys promise in an oral settlement agreement for city to annex and rezone land was within the legal authority of the city of joliet to accomplish and were not absolutely void acts per se therefore city could be estopped from avoiding enforcement of contract
Reply with [A, B, C, D, E] only.