Why should you turn your vehicle’s front wheels to the left when parking facing uphill on the right side of a street with a curb?

• Because it prevents your vehicle from rolling into traffic if it starts to move
  Explanation:

  "When parking uphill on a street with a curb, turn your front wheels to the left and let the vehicle roll back slightly until the tire touches the curb. This prevents the car from rolling into traffic if it starts to move. It uses the curb as a barrier for added safety."
• Because it is a part of moving your vehicle into parking gear
• Because it allows your vehicle to roll into traffic if it starts to move
• Because left-turned wheels act as a parking brake