IMAT 2013 Q46 [Chemical Reactions]

The compound (CH_3)_2CHCH_2NH_2 can be synthesised by the following route.

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What types of reaction are used in stages 1, 2 and 3?

A. 1=substitution; 2=addition; 3=reduction
B. 1=substitution; 2=addition; 3=hydrolysis
C. 1=addition; 2=substitution; 3=reduction
D. 1=addition; 2=addition; 3=reduction
E. 1=addition; 2=substitution; 3=hydrolysis