(4) U byu03U nacural(v) In organic polymers the back-bone chain is made upof(a) carbon atoms(b) nitrogen atoms(c) other than carbon atoms(d) none of these

(4) U byu03U nacural(v) In organic polymers the back-bone chain is m

1.	(4) U byu03U nacural(v) In organic polymers the back-bone chain is made upof(a) carbon atoms(b) nitrogen atoms(c) other than carbon atoms(d) none of these
Answer» CARBON atomsExplanation:PLZ MARK me down as a BRAINLIEST