The increasing basicity order of the following compounds is :
Question:

The increasing basicity order of the following compounds is :

1. (D) $<(\mathrm{C})<(\mathrm{A})<(\mathrm{B})$

2. $(\mathrm{A})<(\mathrm{B})<(\mathrm{D})<(\mathrm{C})$

3. $(A)<(B)<(C)<(D)$

4. $(\mathrm{D})<(\mathrm{C})<(\mathrm{B})<(\mathrm{A})$

Correct Option: 1

Solution: