What reagent can be used to convert 2-methylbutan-1-ol into 2-methylbutanal?

A) LiAlH₄
B) Na₂Cr₂O₇
C) O₃
D) KMnO₄
E) PCC

Identify the correct name for the following structure.

A) 5-methyl-4-(methylamino) cyclohept-5-enol
B) 5-hydroxy-2,N-dimethylcyclohept-2-enamine
C) 4-hydroxy-7,N-dimethylcyclohept-6-enamine
D) 4-methyl-5-(methylamino) cyclohept-3-enol