Which One of the Following Findings Is the LEAST Likely

Which one of the following findings is the LEAST likely to indicate arterial insufficiency?

A) Veins distended within 5 seconds of tourniquet release on a Trendelenburg test
B) An ankle-brachial index of less than 0.9
C) Return of dark red color to foot in more than 30 seconds upon lowering it following elevation
D) Decrease in the pulse of dorsalis pedis