Which compound is able to decolourise $\text{Br}_2\text{(aq)}$?
- A$\text{CH}_3\text{CH}_2\text{CH}_2\text{CH}_2\text{CH}_2\text{CO}_2\text{H}$
- B$\text{CH}_3\text{CH}_2\text{CH}_2\text{CH}_2\text{CHO}$
- C$\text{CH}_3\text{CHCH}_2\text{CH}_2\text{CH}_2\text{OH}$
- D$\text{CH}_3\text{CH}_2\text{CH}_2\text{CO}_2\text{CH}_2\text{CH}_3$