Which one of the following statements is correct regarding the "Dunki" or "donkey journey"?

Dunki refers to the official routes sanctioned by countries for migration purposes.

The Dunki journey involves organized and safe travel facilitated by international bodies.

Dunki journeys are illegal immigration technique used to enter countries due to stringent visa regulations and financial constraints.

Dunki is a colloquial term for luxurious travel experiences for high-net-worth individuals.