A feature of addition polymerisation is that the empirical formulae of the polymer and its monomer are identical. The absorbent material used in babies’ disposable nappies is produced from the addition polymer shown. From which monomer could this addition polymer be made?
- A$\text{CH}_3\text{CH(OH)CO}_2\text{H}$
- B$\text{HOCH}_2\text{CH}_2\text{CO}_2\text{H}$
- C$\text{H}_2\text{C=CHCO}_2\text{H}$
- D$\text{HO}_2\text{CCH=CHCO}_2\text{H}$