Why does a large commercial vehicle need to swing wide to the left before making a right turn?

• To avoid friction on the road
• To avoid a collision with the right curb
  Explanation:

  "When making a right turn, a large vehicle may first swing wide to the left and then turn right to avoid hitting the curb on the right. Do not move into the open space on the right side; it is a dangerous position and could lead to an accident."
• To avoid a collision with the left curb
• None of the above