Which compound reacts with acidified potassium dichromate(VI) and with alkaline aqueous iodine?
- A$\text{CH}_3\text{COCH}_2\text{CH}_3$
- B$\text{CH}_3\text{CH(OH)CH}_2\text{CH}_3$
- C$\text{CH}_3\text{CH}_2\text{CH}_2\text{CHO}$
- D$\text{CH}_3\text{CH}_2\text{CH}_2\text{CH}_2\text{OH}$