The two parallel white lines painted across the road at the intersection in the picture below indicate:

• A stop line
• A crosswalk
  Explanation:

  "A crosswalk is marked by two parallel white lines painted across the road. However, crosswalks at intersections are not always marked. If there is no stop line, stop at the crosswalk. If there is no crosswalk, stop at the edge of the sidewalk. If there is no sidewalk, stop at the edge of the intersection."
• A sidewalk
• All of the above