Indlela yokukhetha i-hydrogenated C5 petroleum resin kunye ne-resin eguquliweyo yamanzi e-rosin emhlophe kwishishini lokunamathela.
A.
B. I-resin eguquliweyo yamanzi-emhlophe ye-rosin ine-tack yokuqala efanelekileyo kunye ne-tack ehlala ihleli
C. I-rosin resin ihambelana nokusingqongileyo
D.
