Use the code from the Ada$-$like code from the previous problem $($Code $9).$ Assume the following

calling sequence.

Main calls Sub$1$

Sub$1$ calls Sub$2$

Sub$2$ calls Sub$3$

Answer the following:

a$)$ Answer the following questions with one of the following: Sub$1.$x$,$ Main.x or none. Using static

$($lexical$)$ scope, which declaration of $x$ in the referencing environment for:

i$.$ Sub$1?$

ii$.$ Sub$2?$

iii. Sub$3?$

iv$.$ Main?

b$)$ Answer the following questions with one of the following: Sub$1.$x$,$ Main.x or none. Using dynamic

scoping, which declaration of $x$ in the referencing environment for:

i$.$ Sub$1?$

ii$.$ Sub$2?$

iii. Sub$3?$

iv$.$ Main?