A reaction pathway diagram is shown. Which reaction does not show this kind of profile?
- A$\text{CH}_3\text{CHO} + \text{HCN} \xrightarrow{\text{NaCN}} \text{CH}_3\text{CH(OH)CN}$
- B$\text{C}_2\text{H}_5\text{Br} + \text{NaOH} \rightarrow \text{C}_2\text{H}_5\text{OH} + \text{NaBr}$
- C$(\text{CH}_3)_3\text{CBr} + \text{NaOH} \rightarrow (\text{CH}_3)_3\text{COH} + \text{NaBr}$
- D$\text{cyclohexene} + \text{Br}_2 \rightarrow \text{dibromocyclohexane}$