Read the following excerpt from a US court opinion:
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that the blood draw was reasonable under a general Fourth Amendment balancing test outside of any exception. Finally, it argues that exigent circumstances existed to justify the warrantless blood draw, namely, the difficulty that the law enforcement officers would have faced obtaining a warrant late at night when tasked with investigating a large-scale fatality accident. a. Whether the Texas implied-consent statute is its own exception to the warrant requirement The State argues that the Transportation Code provides its own exception to the Fourth Amendment’s warrant requirement. Both the United States Supreme Court and the Court of Criminal Appeals have rejected the contention that a statute may create a per se exception to a warrant requirement. See McNeely, 133 S.Ct. at 1561-63 ; Villarreal, 475 S.W.3d at 797-800 (holding
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What is the most suitable continuation to the opinion? Your options are:
A. holding that per se statutory rule is not permissible under fourth amendment
B. holding that the statutory definition of responsibly connected provided a per se rule
C. holding that constructive amendments which are per se reversible under harmless error analysis are also per se reversible under plain error analysis
D. holding such agreements to be per se illegal
E. holding expert testimony is not required as a per se rule  in bad faith actions
Reply with [A, B, C, D, E] only.