Read the following excerpt from a US court opinion:
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from enforcing its billboard ordinance, save wind load and electrical requirements, should Whiteco or its successors apply to rebuild in the same location, or to relocate in a new location, any of the forty-two billboards identified in the Agreement. Applying the settled principles above, the Agreement had “the effect of interfering [with the proper exercise of City’s police power], [and] must necessarily give way to an appropriate exercise of [City’s] police power.” State ex rel. Kansas City, 524 S.W.2d at 859. Because City had no authority to contract away future enforcement of its zoning ordinance against rebuilt or relocated billboards, the Agreement exceeded the scope of City’s powers in violation of section 432.070, and is void. North Kansas City Sch. Dist., 369 S.W.2d at 165 ; Edward H. Ziegler, Jr., 3 Rathkopfs The Law
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What is the most suitable continuation to the opinion? Your options are:
A. holding it is critical to the trial courts power of control over its own docket and its ability to serve effectively all litigants that it maintain control over progress of cases before it including requests for extensions of time
B. holding that where a court possesses jurisdiction over a disputed matter it may exercise its equitable powers to ensure that substance will not give way to form and that technical considerations will not prevent substantial justice from being done
C. 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
D. holding that any attempt by way of contract to deprive a city of  control over exercise of it police powers is void
E. holding over
Reply with [A, B, C, D, E] only.