Which of the songs below was the fastest selling single of all time for Warner Brothers Records?

Vehicle - The Ides Of March

Tower Of Power - What Is Hip? (Chicago 1977)

Average White Band - Pick Up The Pieces (Live At Montreux 1977)‬

Lucretia Macevil by Blood Sweat and Tears

Blood, Sweat & Tears - Spinning Wheel (Audio)

Chicago - 25 Or 6 To 4 (HD)

Saturday in the Park

Earth, Wind & Fire - September (Official Video)

Earth, Wind & Fire - Got to Get You Into My Life (Audio)‬