Read the following excerpt from a US court opinion:
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court earlier determined that "Trooper Swets['s] contact with [Haar] was not the product of a traffic stop.” Conclusions of Law ¶ 3 (emphasis added). 2 . The circuit court also erred in reasoning that a number of cases have concluded that canine sniffs not incident to a traffic stop are subject to the same rules as sniffs conducted incident to a traffic stop. The circuit court’s cited cases all involved canine sniffs that were either incident to a traffic stop or involved parked and unattended cars in public places where the defendant had no expectation of privacy. None of the court's cited cases involved what is alleged here: an investigatory detention of persons or property performed to conduct a canine sniff. See e.g. United States v. Engles, 481 F.3d 1243, 1245 (10th Cir.2007) ; United States v. Friend, 50 F.3d 548, 551-52
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What is the most suitable continuation to the opinion? Your options are:
A. holding no fourth amendment violation when police initiated a canine sniff of a trailer attached to a pickup truck that was parked and unattended on a public street
B. holding that canine sniff not a search under the fourth amendment
C. holding canine sniff of a vehicle validly stopped for a headlight violation was not unreasonable given that the driver was being issued a ticket at the time a second officer arrived on the scene and ran the drug dog around the vehicle
D. holding that a canine sniff is a search for purposes of the fourth amendment
E. holding dog sniff of a vehicle parked on a public street did not violate the fourth amendment when canine sniff was conducted after the driver was validly stopped and arrested for driving on a suspended license
Reply with [A, B, C, D, E] only.