Surface size uses _________ materials, commonly starch, but sometimes starch reacted with ethylene oxide are applied as a solution to the surface of the web at the size press, followed by drying.

Surface size uses _________ materials, commonly starch, but sometimes

1.	Surface size uses _________ materials, commonly starch, but sometimes starch reacted with ethylene oxide are applied as a solution to the surface of the web at the size press, followed by drying.
A.	tPolymeric
B.	tRadioisotopic
C.	tMetallic
D.	tNon metallic
Answer» B. tRadioisotopic