If any part of the matter is not needed in stencil ,-------can be usedAGum paperBStylus penCImpression rollerDDuplicating paperAnswer: A. Gum paper Read Explanation: There are three ways of making correction in the stencil paper1.Using correcting fluid2.Using gum strip3.graftingIf any part of the matter is not needed in stencil Gum paper can be used Read more in App