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 .
What may be the reason glass has become scarce and the process of making glass making be lost to the world ?
Pick the best answer from the following options:
- The Barcid King ordered his people , at no cost , would glass be given to outsiders after the war .
 - The King would decide who would get glass .
 - The King wanted to be paid before giving away glass .
 - None of the above choices .


The Barcid King ordered his people , at no cost , would glass be given to outsiders after the war .