Concept:Serigraphy (screen printing) is the common fabric printing method used for garments and clothes.Explanation:Delegates’ clothes need a printing method that can transfer clear designs onto fabric, often in large quantities.Block printing and stencil printing can be used on fabric but are less efficient for producing many identical printed clothes.Frottage is a rubbing method, not suitable for printing clothes.Serigraphy pushes ink through a mesh screen onto the fabric, making it the most appropriate method for printing delegates’ clothes.Answer:D. Serigraphy printing