In which reaction is the organic compound oxidized?
- A$\text{CH}_3\text{CH}_2\text{CH}_2\text{CHO}$ + Tollens’ reagent
- B$\text{CH}_3\text{CH}_2\text{CH}_2\text{CHO}$ + $\text{LiAlH}_4$
- C$\text{CH}_3\text{CH}_2\text{CH}_2\text{OH}$ + concentrated $\text{H}_3\text{PO}_4$
- D$\text{CH}_3\text{CO}_2\text{C}_2\text{H}_5$ + dilute $\text{H}_2\text{SO}_4$