I think it's a word within a word...
The ad allows the person or person(s) who made it get money, in other words the one who made that ad are paying the person who made the eResource document money to put their ad in it.
Persona non grata from Latin- an unwelcome person.
This term is usually used in diplomacy, when due to some criminal/political actions a person is prohibited to enter a country. For example if a member of diplomatic mission is caught carrying out espionage missions he can be labeled "persona non grata", forced to leave a country and cannot return.
Persona non grata can also be used in less formal situation, when someone is not welcome in society/community due to his behavior.
Answer:
Gopal's action of changing his appearance is a good decision because he succeeded in bringing the Hilsa fish to the palace without anyone asking him about it because they were all focused on his appearance.
Explanation:
In order to take up the challenge given by the king, Gopal shaved his face, smeared himself with ash and wore torn cloths. this attracted the attention of the people to his appearance and nobody talked about the hilsa fish bought by him.
furthermore, on reaching the palace, the guards stopped him from entering, then Gopals starts singing in a loud voice and dancing too. This made the king to allow the stranger come in. even inside the palace, no one asks about the hilsa fish including the king instead he asked about Gopal's dressing. then Gopal reminded the king of the challenge, which the king congratulates him on winning the challenge. The challenge by the king is that; The king told Gopal to buy a hilsa fish and bring it to the palace and that nobody should ask him a word about it.
Therefore, Gopal's action of changing his appearance is justified because he managed to draw people's attention to his appearance and away from the hilsa fish.