Which of the substrate give the same product on the reduction with DIBAL-H?
A. `CH_(3)-(CH_(2))_(g)-CN` and `CH_(3)(CH_(2))_(g)-COOH`
B. `CH_(3)-(CH_(2))_(g)-CN` and `CH_(3)(CH_(2))_(g)-COOC_(2)H_(15)`
C. `CH_(3)-(CH_(2))_(g)-COOH` and `CH_(3)(CH_(2))_(g)-CHO`
D. `CH_(3)(CH_(2))_(g)-COOH` and `CH_(3)(CH_(2))_(g)COOC_(2)H_(5)`