Deep and Shallow Binding

Consider the following pseudocode, assuming dynamic scoping rules:

$1$ procedure main $()$

$2$ x : int :$=3$

$3$ y : int :$=5$

$4$

$5$ procedure mult $()$

$6$ x :$=$ x $*$ y

$7$ print $($ x $)$

$8$

$9$ procedure three $($ f : procedure $)$

$10$ x : int :$=7$

$11$ f $()$

$12$

$13$ procedure two $()$

$14$ y : int :$=9$

$15$ one $($ three $,$ mult $)$

$16$

$17$ procedure one $($ f$1$ : procedure $,$ f$2$ : procedure $)$

$18$ x : int :$=1$

$19$ f$1($ f$2)$

$20$

$21//$ main body

$22$ two $()$

$23$ print $($ x $)$

$1.$ If the language uses deep binding, what will the output be$?$ Explain your answer.

$2.$ If the language uses shallow binding, what will the output be$?$ Explain your answer.