How should you merge with traffic when entering a freeway?

• A. Stop, then enter the traffic quickly.
• B. Watch for a gap and merge with the traffic at the speed it is travelling.
  Explanation:

  "Trying to merge into freeway traffic too slowly causes a dangerous situation for other drivers who may have to brake heavily. Match your speed and merge into a gap in the traffic."
• C. Speed up and force your way into the traffic.