Which of the following reaction is correct?

The Markovnikov Rule predicts the regiochemistry of $HX$ addition to unsymmetrically substituted alkenes. The halide component of $HX$ bonds preferentially at the more highly substituted carbon, whereas hydrogen prefers the carbon which already contains more hydrogen.

By the reaction with${HNO}_{2}$ amine doesnot lose any carbon while producing alcohol.

${CH}_{3}{CH}_{2}{CH}_{2}{NH}_{2}\overset{{HNO}_{2} / 0 - {5}^{o}C}{\to}{CH}_{3}{CH}_{2}{CH}_{2}OH + {N}_{2} + HCl$

Cyclohexene undergo allylic substitution reaction with bromine in the presence of sunlight.

In Hoffmann bromamide degradation amides give amines by loss of one carbon.

${C}_{2}{H}_{5}{CONH}_{2} + {Br}_{2} + NaOH\overset{}{\to}{C}_{2}{H}_{5}{NH}_{2} + {Na}_{2}{CO}_{3} + NaBr + {H}_{2}O$