You approach an intersection in busy traffic and want to go straight ahead. The traffic lights turn green. When are you permitted to enter the intersection?

• A. When the vehicle behind signals you to go.
• B. Immediately after the traffic lights turn green.
• C. Only when there is room for your vehicle on the other side.
  Explanation:

  "If you block the intersection with your vehicle it will hold up traffic coming from other directions and causes unnecessary dangers."