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 ?
Answer: He did n't want anyone to wear glasses .He wanted to punish his subjects and make them go glassless .None of the above choices .He did n't want anyone to compete with his kingdom regarding the glass trade ( Monopoly )