Tap roots are commonly found in

The edible part of the turnip ($Brassica$ $rapa$) is a ........

Which of the following pairs are correctly matched?
$(1)$ Assimilatory roots — Photosynthesis
$(2)$ Fasciculated roots — Food storage
$(3)$ Stilt root — Mechanical support
$(4)$ Sucking root — Absorption of moisture from the air
Select the correct answer:

Both minerals and water are absorbed by

........ roots are associated with nitrogen-fixing bacteria.

In which region of the root does the maximum absorption of water occur?