Explain the execution of the code written in Scheme and show

the sequence of steps involved in the execution of the below

code.

A$.($DEFINE $($factorial n$)$

$($IF $(<=$ n $1)$

$1$

$(*$ n $($factorial $(-$ n $1)))$

$))$

B$.($CADDAR $\text{'}(($A B $($C$)$ D$)$ E$)))$