If you have a green light, but traffic is blocking the intersection, you should:

  1. Stay out of the intersection until traffic clears. ✓
  2. Enter the intersection and wait until traffic clears.
  3. Merge into another lane and try to go around the traffic.

Answer: A. Stay out of the intersection until traffic clears.

Stay out of the intersection until traffic clears, even though your light is green.

Why this is the answer

The handbook says a green light means go, but with a condition: only proceed if there is enough room to get all the way across without putting anyone in danger. It also states you should not enter the intersection when you cannot clear it before the light turns red, and that blocking an intersection where there is no room to cross fully is against the law. So a green light does not give you the right to sit in the middle of the crossing.

Why the other answers are wrong

Remember it

Green means go only when there is room on the far side for your whole car, so look past the light before you move.

Official handbook: California Driver Handbook (DL 600), Section 7: Laws and Rules of the Road, p. 39

Explanation drafted with AI (deepseek-flash) from the official handbook passage cited above, then checked automatically and by a second model on 2026-10-23. Always confirm with the official handbook.