Which of the following reactions proceeds via a radical intermediate?
- A$CH_3-CH=CH_2+HBr \to CH_3-CH(Br)-CH_3$
- B$CH_3-CHO+HCN \to CH_3-CH(OH)CN$
- C$CH_3-CH=CH_2+HBr \xrightarrow{\text{peroxide}} CH_3-CH_2-CH_2-Br$
- D$CH_3CHO+NH_2OH \xrightarrow{H^+} CH_3-CH=N-OH+H_2O$
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