Assume an array of size n$,$ where is an even number and the first index of the array starts at $1.$Find the effort T$($n$)$ of the following two nested loops that iterate through this array:

For i$=($n$-1)$ to $2$

For j$=($n$/2)$ to $1$

a$.$ T$($n$)=$n$\backslash$times $($n$/2)$

b$.$ T$($n$)=($n$-1)\backslash$times $(($n$/2)+1)$

c$.$ T$($n$)=($n$-1)\backslash$times $(($n$/2)-1)$

d$.$ T$($n$)=($n$-1)\backslash$times $($n$/2)$