What do you have to particularly remember at crossroads and junctions in a built-up area?

Your answer is correct because, in built-up areas, the priority at crossroads and junctions is not determined by the width or development of the roads. Even narrow or less developed intersecting roads can have priority over the main road. This means you must be attentive and not assume that a wider or better-developed road always has the right of way. The common assumption that priority always goes to the bigger or more developed road is false. Also, the general priority rule "right before left" does not apply without exception; there are many situations where priority is regulated by signs, signals, or road markings. Therefore, always look for priority signs and be cautious at intersections in built-up areas.