Answer the followings:

$($a$)$ How would this macro expanded for each of the following calls:

RMCR NUM, $2$

RMCR INP, $1$

$($b$)$ For the following invocation: RMCR N$,5$

How will the macro be expanded?

What are the contents of DEFTAB, NAMTAB, and ARGTAB?

$($c$)$ What is the function of this macro?