$[50$ points$]$ Answer the following questions that require you to evaluate expressions or short code fragments.

$($a$)$ Suppose $L$ is $["$healthy$",$ "join", "verity"$].$ What does the following expression evaluate to$?$

$[x$ for $x$ in $L$ for $y$ in $x$ if $y$ in $[v,y]$

$($b$)$ Suppose $D$ is "class": $7,0,1,$ "thing": $3,1,4,$"big": $[1,1,9].$ What is the value of $D$ after the following code fragment is executed?

"big"$][1]=$ "thing"

"big"$][1]$

$($c$)$ Suppose $D$ is "what": $22,$ "are":$11,$ "you":$14,$ "doing":$5,$ "next":$9,$ "Saturday":$4\}.$ What is the value of $D$ after the following code fragment is executed?

"what"$]$ "are"$]$

D$.$ update $(\{"$Sunday$"$: $25,$ "doing":$7\})$

del "you"$]$

$($d$)$ What does this expression evaluate to$?$

for $x$ in range $(2,40)$ if

for $y$ in range $(2,x)$ if $x\%y==0$ and

for $y$ in range $(2,x+2)$ if $(x+2)\%y==0$

$($e$)$ Suppose $L$ is "lettuce", "spinach"$],[["$parsley$"]],$ "hello", $[1,[2],[1,2]]].$ What does this expression evaluate to$?$

sum $($L$[$len$($L$)-1][2])*$L$[2].$replace$("$lo$","$p$")$