Context: In reality , it was sand . Sand used to make the finest glass . After the war , the Barcid king had ordered that no glass was to be given to outsiders at any cost . Thus , over the years , glass had become scarce and the process of glass making lost to the world .

Question: What is the reason the Barcid King ordered no glass was to be given to outsiders ?
Options:
0. He did n't want anyone to wear glasses .
1. He wanted to punish his subjects and make them go glassless .
2. None of the above choices .
3. He did n't want anyone to compete with his kingdom regarding the glass trade ( Monopoly )
Answer: 3