Arrange the following compounds in order of decreasing basicity.

Arrange the following compounds in increasing order of their base strength.

The major products $\mathrm{X}, \mathrm{Y}$ and $\mathrm{Z}$ in the following sequence of transformations

 are 

Consider the following reactions,


The compound $\left[\mathrm{P}\right]$ is:

The correct order of basicity of the following amines 

I 

II 

III 

IV 

A. Phenyl methanamine

B. $\mathrm{N}, \mathrm{N}$-Dimethylaniline

C. $\mathrm{N}$-Methyl aniline

D. Benzenamine

Choose the correct order of basic nature of the above amines.