Consider the following cell array:

c$\_$array$=\{41,\text{'}$a$\text{'}$; $1$:$2$:$8,$ 'hai'$\}$ which of the following command produces output $7?$

$($a$)$

c$\_$array$\{3\}(4)-$

$($b$)$ c$\_$array$(2,1)(4)$

$($c$)$ c$\_$array$\{2\}(4)$

$($d$)$ both $($b$)$ and $($c$)$