Suppose we execute the following:$\{$:$["$ array $([[0,1,2,3],"],[[4","5","6","7]","],[[8","9","10","11]","],[[12","13","14","15]])]$:$\}$

This problem has three parts, each requiring one line of code. In the space for the answer, for each problem, provide that one$-$line answer and label it with the problem it answers $(\text{'}$a$\text{'},\text{'}$b$\text{'},$ or $\text{'}$c $c\text{'})$

a$.$ Index $s$ to get the following array:

$])$

$[4,5,6,7],$

$[12,13,14,15],$

$([[4,5,6,7]$

b$.$ Slice $s$ to get the following slice.

$])$

$([[8,9,10]$

c$.$ Use a Boolean index on the rows of $s$ to get the following, consisting of those rows of $s$ whose largest element is less than $8.($Use max $()$ and specify a value for axis.$)$

$[4,5,6,7]$