Question

yellow lines separate:
traffic lanes moving in opposite directions
traffic lanes on one - way streets
20 ft away from a railroad track
center turn lanes and turn - out lanes

Explanation:

To determine what yellow lines separate, we recall traffic rules: Yellow lines (usually double yellow or single yellow in some contexts) separate traffic lanes moving in opposite directions. White lines are used for lanes in the same direction (like on one - way streets, separating center turn/turn - out lanes). The "20 ft from railroad track" is about stopping distance, not lane separation. So the correct option is the first one.

Answer:

Traffic lanes moving in opposite directions