when the following code is executed.

$1$ def$$foo$($seq$)$:

$2$pos $=$ bar$($seq$)$

$3$a $=$ seq$[$:pos$]$

$4$b $=$ seq$[$pos$+1$:$]$

$5$return a$+$b

$6$

$7$def$$bar$($sub$)$:

$8$ return sub$[0]$

$9$

$10$p $=[2,0,-1,4]$

$11$p $=$ foo$($p$)$

$12$print$($p$)$

Answer the questions assuming the entire code has been executed:

$1.$ Fill in the value$($s$)$ for $($a$)$:$$

$2.$ Fill in the value$($s$)$ for $($b$)$:$$

$3.$ Fill in the value$($s$)$ for $($c$)$:$$

$4.$ Fill in the value$($s$)$ for $($d$)$:$$

$5.$ What is the value of$$seq$$when line $4$ is executed:$$

$6.$ What will be printed to the terminal as a result of executing line $12?$: