$6.(12$ points$)$ Consider the file USA.txt$,$ which has millions of lines like this:

Each line has last name, first name, city, state, zip, and points $($which may be negative, positive, or zero$).$ Some lines may have extra information, such as nicknames.

We want the line for the person from Arizona with the highest point total.

$($To be clear,

$($a$)$ Give a command that uses only $\backslash ($ a w k $\backslash )$ to find that line.

$($b$)$ Give a command that uses anything but awk $($grep$,$ sed, a pipeline of both or more, whatever$)$ to find that line.