Explanation:

In seed certification systems, different classes of seeds are identified by specific tag colors to indicate their quality and purity standards. Certified seeds, which are progeny of foundation seeds and are available to farmers for commercial crop production, are identified by a blue tag. Option (1) 'Blue' is correct. Option (4) 'White' tags are typically used for Foundation seeds. Breeder seeds usually have a golden yellow or yellow tag, and Registered seeds often have a purple tag. Options (2) 'Orange' is not a standard color for seed certification tags.