An organic compound `(C_3H_9N)` `(A)` when treated with nitrous acid , gave an alcohol and `N_2` gas was evolved. (A) on warming with `CHCl_3` and caustiv potash gave `(C)` which on reduction gave isopropylmethylamine. Predict the structure of (A).
A. `CH_(3)CH_(2)CH_(2)NH_(2)`
B. `CH_(3)CH_(2)NHCH_(3)`
C. `CH_(3)-underset(CH_(3))underset(|)(CH)-NH_(2)`
D. `CH_(3)-underset(CH_(3))underset(|)(N)-CH_(2)`
