A double yellow line down the middle means

• A. Two-way traffic only
• B. Road ahead is closed
• C. No passing
• D. Passing allowed on the left

Answer: (C)

Double yellow lines in the center mean you may not pass any vehicle in either direction. The fact that both lines are solid tells you that crossing the center line is unsafe here—visibility or road conditions don’t allow a safe pass. So you should stay in your lane and wait until you’re on a section with a dashed line or until passing is legally allowed and safe. This marking isn’t about road closure or about two-way traffic being present, and it doesn’t permit passing on the left.