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:

  "Turn your front wheels to the left when parking uphill on a street with a curb. With the wheels turned, allow your vehicle to roll back slowly until the right front tire is touching the curb. This helps to prevent the vehicle from rolling into traffic if it starts to move."
• 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