Parking is prohibited to

Explanation

In all of the above cases — both on bridges and overpasses and underneath them.

Parking is prohibited on bridges and overpasses and also underneath them, so the correct choice is "in all above cases".

Why it is banned on a bridge: the carriageway on a bridge is usually narrower than the road leading to it, so a parked car creates a sudden pinch point exactly where a driver has neither room to manoeuvre nor a long sight line. Why it is banned underneath: piers and abutments block visibility, and a car parked there is not seen until the last moment.

The official bank contains many "parking is prohibited" questions and "all of the above" is frequently correct — but do not lean on that as a trick. Evaluate each option on its own.

Why the other answers are wrong

• On bridges and overpasses. — True but incomplete: parking underneath is prohibited as well.
• Under bridges and overpasses. — True but incomplete: parking on top is prohibited as well.