With no explanation, chose the best option from "A", "B", "C" or "D". 538 Pa. 236, 648 A.2d 285 (1994). Whether a licensee’s conduct, as found by the trial court, constitutes a refusal is a question of law. Commonwealth, Department of Transportation, Bureau of Driver Licensing v. Kilrain, 140 Pa.Cmwlth. 484, 593 A.2d 932 (Pa.Cmwlth.), A.2d 655 (1988) (upholding suspension of operating privilege, holding that signing a hospital consent form is not an impermissible additional requirement), and Selan v. Commonwealth, Department of Transportation, Bureau of Traffic Safety, 108 Pa.Cmwlth. 36, 529 A.2d 65 (1987) (upholding suspension of operating privilege where licensee failed to sign a hospital consent form), and overruled a conflicting line of caselaw, specifically Conrad v. Commonwealth, Department of Transportation, 142 Pa.Cmwlth. 642, 598 A.2d 336 (1991) (<HOLDING>) and our Renwick decision, which relied on the

A: holding that a refusal to sign an implied consent form is not a refusal to submit to a breathalyzer test for purposes of section 1547
B: holding inter alia that a creditor may take a security interest in a licensees liquor license
C: holding refusal to sign hospital waiver of liability form is not a refusal under section 1547
D: holding that a license suspension under section 1547 may not be supported by a licensees refusal to satisfy a pretest procedure impermissibly linked to the testing
D.