Ungayikhetha kanjani i-hydrogenated C5 petroleum resin kanye ne-resin yamanzi eguquliwe emhlophe embonini yokunamathela.
A.
B. Iresin ye-rosin eguquliwe emhlophe yamanzi ine-tack yokuqala enhle kanye ne-tack ehlala njalo
C. I-rosin resin ihambisana kakhulu nemvelo
D.
