What should you do before changing a lane or turning around a corner?

• You should use your turn signal well in advance.
  Explanation:

  "

  You must always signal well in advance before changing a lane or turning around a corner. Look from side to side and check your blind spots to make sure the way is clear.

  "
• You should come to a complete stop.
• You should speed up the vehicle.
• You should lock every door before the move.